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67-763: AvantGrand is a brand of digital piano introduced by Yamaha in 2009. The product line consists of a baby grand piano (the N3, replaced by the N3X in 2016), two "vertical" grand pianos (the N2 and the N1 replaced by the N1X in 2019), and an upright piano (the NU1, replaced by the NU1X in 2017). The AvantGrand pianos use samples taken from four locations in a Yamaha CFIIIS (CFX and Bosendorfer Imperial for

134-474: A MIDI connection, allowing them to control or be controlled by other electronic instruments and sequencers . They may also have an external storage slot to save and load MIDI data, which the piano can play automatically, allowing it to function as a player piano . Some have a built-in sequencer to aid in composition. Most digital pianos can be connected to a computer. With appropriate software such as scorewriters , digital audio workstations and sequencers ,

201-568: A MIDI controller keyboard, and the output signal from the module is plugged into a keyboard amplifier or PA system . One early example of a digital piano module is Roland 's 1986 MKS-20 digital piano module. Pianoteq is a software synthesizer which shares some characteristics with piano modules. Well-known manufacturers of digital pianos include Dynatone , Casio , Clavia ( nord ), Dexibell , Kawai , Korg , Kurzweil , Orla  [ it ] , Roland , Suzuki , and Yamaha . Read-only memory Read-only memory ( ROM )

268-422: A mask ROM integrated circuit (IC), that cannot be electronically changed after manufacture. Although discrete circuits can be altered in principle, through the addition of bodge wires and the removal or replacement of components, ICs cannot. Correction of errors, or updates to the software, require new devices to be manufactured and to replace the installed device. Floating-gate ROM semiconductor memory in

335-467: A recording studio . This type of digital piano normally makes no attempt to imitate the physical appearance of an acoustic piano, rather resembling a generic synthesizer or music workstation . A distinguishing feature of most stage pianos is a lack of internal loudspeakers and amplification - it is normally assumed that a powerful keyboard amplifier or PA system will be used. However, some stage pianos are equipped with powered speakers. Yet another form

402-632: A PC for firmware updates; for example, a digital audio player might be updated to support a new file format . Some hobbyists have taken advantage of this flexibility to reprogram consumer products for new purposes; for example, the iPodLinux and OpenWrt projects have enabled users to run full-featured Linux distributions on their MP3 players and wireless routers, respectively. ROM is also useful for binary storage of cryptographic data, as it makes them difficult to replace, which may be desirable in order to enhance information security . Since ROM (at least in hard-wired mask form) cannot be modified, it

469-512: A bit line to a word line. Consequently, ROM could be implemented at a lower cost-per- bit than RAM for many years. Most home computers of the 1980s stored a BASIC interpreter or operating system in ROM as other forms of non-volatile storage such as magnetic disk drives were too costly. For example, the Commodore 64 included 64 KB of RAM and 20 KB of ROM containing a BASIC interpreter and

536-524: A company can simply order a large batch of fresh PROM chips and program them with the desired contents at its designers' convenience. The advent of the metal–oxide–semiconductor field-effect transistor (MOSFET), invented at Bell Labs in 1959, enabled the practical use of metal–oxide–semiconductor (MOS) transistors as memory cell storage elements in semiconductor memory , a function previously served by magnetic cores in computer memory . In 1967, Dawon Kahng and Simon Sze of Bell Labs proposed that

603-399: A computer, each serving distinct roles. RAM, or Random Access Memory, is a temporary, volatile storage medium that loses data when the system powers down. In contrast, ROM, being non-volatile, preserves its data even after the computer is switched off. IBM used capacitor read-only storage (CROS) and transformer read-only storage (TROS) to store microcode for the smaller System/360 models,

670-523: A cushion is provided so the key does not rise above its resting position. The shape, size, and weight of the hammer affects the touch of the key, as does the placement of the sensor(s) (7), pivots (8), and the design of the mechanical linkage between the key cam and the hammer. To make the keybed more compact, many digital keyboards use a pivot point in the rear and hammers underneath the keys, as illustrated. Digital pianos typically use analog sensors for their keyboard action, as opposed to digital sensors of

737-480: A file with software to be stored in a writable ROM device. For example, users modifying or replacing the Android operating system describe files containing a modified or replacement operating system as " custom ROMs " after the type of storage the file used to be written to, and they may distinguish between ROM (where software and data is stored, usually Flash memory ) and RAM. ROM and RAM are essential components of

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804-442: A grand piano, usually with a more precision keyboard action and high-quality sound system built into the unit's cabinet in a similar manner as the strings on a grand piano. These pianos are mostly high-end novelty models offered by only small number of manufacturers, and often have higher prices than an average acoustic piano. Another common form is the stage piano , designed for use with live performances, professional audio, or in

871-509: A more classical design which closely resemble an acoustic upright piano. The most expensive models may appear similar in their outer appearance and height to a full-size upright piano. Upright digital pianos are mainly intended for home use and are usually more expensive than the other types, due to the expensive wooden case. Some models, especially the higher-end, more expensive ones, often use wooden keyboards, as opposed to regular plastic keyboards. An uncommon form of digital piano that resembles

938-411: A new role as a medium for mass storage or secondary storage of files. Mask ROM is a read-only memory whose contents are programmed by the integrated circuit manufacturer (rather than by the user). The desired memory contents are furnished by the customer to the device manufacturer. The desired data is converted into a custom photomask /mask layer for the final metallization of interconnections on

1005-476: A professional recording studio . Usually multiple samples are available for the same keystroke, attempting to reproduce the diversity of sounds heard on an acoustic piano. However, sample-based digital pianos have limitations on the faithfulness with which they simulate acoustic pianos. Because samples are taken for only a limited number of intensity levels, digital pianos usually lack the continuous timbral changes that characterize acoustic pianos. They may also lack

1072-597: A regular electronic keyboard and synthesizer. These sensors work in a similar way to those in analog joysticks found on video game controllers , where velocity input is converted from the key movement as well, not just the initial pressure of the key sensor. Other common features include: In general, the sounds produced by a digital piano are based on sampling , by which acoustic piano sound samples are stored in ROM . The samples are usually created using high-quality pianos, professional microphones , and high-quality preamps in

1139-617: A replacement for traditional instruments. Similar to a traditional acoustic piano, the defining feature of a digital piano is a musical keyboard with 88 keys. The keys are weighted to simulate the action of an acoustic piano and are velocity-sensitive so that the volume and timbre of a played note depends on how hard the key is pressed. Instruments with fewer keys, and those with keys that are unweighted (similar to electric organs and synthesizers ) or not velocity-sensitive tend to be called electronic or digital keyboards rather than digital pianos. Instruments that less accurately simulate

1206-511: A specific part of the device, instead of the entire device. This can be done at high speed, hence the name "flash". All of these technologies improved the flexibility of ROM, but at a significant cost-per-chip, so that in large quantities mask ROM would remain an economical choice for many years. (Decreasing cost of reprogrammable devices had almost eliminated the market for mask ROM by the year 2000.) Rewriteable technologies were envisioned as replacements for mask ROM. The most recent development

1273-416: A technical level the gains have been achieved by increasing parallelism both in controller design and of storage, the use of large DRAM read/write caches and the implementation of memory cells which can store more than one bit (DLC, TLC and MLC). The latter approach is more failure prone but this has been largely mitigated by overprovisioning (the inclusion of spare capacity in a product which is visible only to

1340-437: A type of high-performance digital piano that incorporate actual piano action and high-quality modeled samples of an acoustic piano. This type of digital piano was first popularized by Roland in the 1980s, with their flagship stage piano at the time, RD-1000. There are also digital piano modules, which are simply keyboardless sound modules chiefly containing piano samples. To use these modules, they are typically connected to

1407-406: A variety of other devices. In particular, many microprocessors have mask ROM to store their microcode . Some microcontrollers have mask ROM to store the bootloader or all of their firmware . Classic mask-programmed ROM chips are integrated circuits that physically encode the data to be stored, and thus it is impossible to change their contents after fabrication. It is also possible to write

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1474-442: A wall and are far shallower from keyboard to back than any possible acoustic upright design, as well as a shorter height. Traditional digital pianos, due to their form, offer less portability than the other types, and are mainly designed for use in a single place (e.g. home, classrooms or studios), and are not intended for mobility such as on stage or for live performance. These are a sub-type of traditional digital pianos that offer

1541-436: Is NAND flash , also invented at Toshiba. Its designers explicitly broke from past practice, stating plainly that "the aim of NAND flash is to replace hard disks ," rather than the traditional use of ROM as a form of non-volatile primary storage . As of 2021 , NAND has nearly completely achieved this goal by offering throughput higher than hard disks, lower latency, higher tolerance of physical shock, extreme miniaturization (in

1608-540: Is a type of non-volatile memory used in computers and other electronic devices . Data stored in ROM cannot be electronically modified after the manufacture of the memory device . Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware . Software applications, such as video games , for programmable devices can be distributed as plug-in cartridges containing ROM . Strictly speaking, read-only memory refers to hard-wired memory, such as diode matrix or

1675-407: Is common practice to use rewritable non-volatile memory – such as UV- EPROM or EEPROM – for the development phase of a project, and to switch to mask ROM when the code has been finalized. For example, Atmel microcontrollers come in both EEPROM and mask ROM formats. The main advantage of mask ROM is its cost. Per bit, mask ROM was more compact than any other kind of semiconductor memory . Since

1742-420: Is controlled by playing chords with the left hand. Most portable digital pianos could be freely fitted in a regular keyboard stand like a stage piano, while some types also come equipped with a dedicated matching stand which, when assembled, will have a slight resemblance to a console digital piano. Portable digital pianos, for the sake of lower production cost, were often equipped with a less complex system for

1809-413: Is only suitable for storing data which is not expected to need modification for the life of the device. To that end, ROM has been used in many computers to store look-up tables for the evaluation of mathematical and logical functions (for example, a floating-point unit might tabulate the sine function in order to facilitate faster computation). This was especially effective when CPUs were slow and ROM

1876-415: Is still applied to images of newer games distributed on CD-ROMs or other optical media. ROM images of commercial games, firmware, etc. usually contain copyrighted software. The unauthorized copying and distribution of copyrighted software is a violation of copyright laws in many jurisdictions, although duplication for backup purposes may be considered fair use depending on location. In any case, there

1943-553: Is the portable digital piano which often combines the capabilities of stage pianos, but with additional features similar to a conventional home keyboard . These digital pianos are mostly designed for various purposes such as home, studio, classroom, stage or personal use. It is similar in form to a stage piano, but much lighter in weight, and having a more compact size. Unlike stage pianos, portable digital pianos were commonly equipped with built-in amplification and loudspeakers, usually has lower cost than other types, and its sound quality

2010-511: Is used to store the basic bootstrapping firmware for the processor, as well as the various firmware needed to internally control self-contained devices such as graphic cards , hard disk drives , solid-state drives , optical disc drives , TFT screens , etc., in the system. Today, many of these "read-only" memories – especially the BIOS / UEFI – are often replaced with EEPROM or Flash memory (see below), to permit in-place reprogramming should

2077-550: The 360/85 , and the initial two System/370 models ( 370/155 and 370/165 ). On some models there was also a writeable control store (WCS) for additional diagnostics and emulation support. The Apollo Guidance Computer used core rope memory , programmed by threading wires through magnetic cores. The simplest type of solid-state ROM is as old as the semiconductor technology itself. Combinational logic gates can be joined manually to map n -bit address input onto arbitrary values of m -bit data output (a look-up table ). With

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2144-651: The Electrotechnical Laboratory in 1972, went a long way to solving problem 4, since an EEPROM can be programmed in-place if the containing device provides a means to receive the program contents from an external source (for example, a personal computer via a serial cable ). Flash memory , invented by Fujio Masuoka at Toshiba in the early 1980s and commercialized in the late 1980s, is a form of EEPROM that makes very efficient use of chip area and can be erased and reprogrammed thousands of times without damage. It permits erasure and programming of only

2211-776: The Fender Rhodes , the Yamaha CP70 , the Wurlitzer , and the Yamaha DX7 . It may also emulate other keyboard instruments, including organ , harmonium , and clavichord . Some digital pianos also incorporate other basic " synthesizer " sounds such as guitars , string ensemble , brass instruments , woodwinds and drum kits . Some high-end digital pianos that offer a wide range of instrument sounds similar to electronic keyboards are known as ensemble digital pianos, or just ensemble pianos. Digital pianos usually offer

2278-632: The KERNAL operating system. Later home or office computers such as the IBM PC XT often included magnetic disk drives, and larger amounts of RAM, allowing them to load their operating systems from disk into RAM, with only a minimal hardware initialization core and bootloader remaining in ROM (known as the BIOS in IBM-compatible computers). This arrangement allowed for a more complex and easily upgradeable operating system. In modern PCs, "ROM"

2345-512: The floating gate of a MOS semiconductor device could be used for the cell of a reprogrammable ROM, which led to Dov Frohman of Intel inventing erasable programmable read-only memory (EPROM) in 1971. The 1971 invention of EPROM essentially solved problem 3, since EPROM (unlike PROM) can be repeatedly reset to its unprogrammed state by exposure to strong ultraviolet light. Electrically erasable programmable read-only memory (EEPROM), developed by Yasuo Tarui, Yutaka Hayashi and Kiyoko Naga at

2412-468: The harmonic tones that result when certain combinations of notes are sounded, and the natural reverberation that is heard when an acoustic piano is played percussively. They often lack the incidental acoustic noises associated with piano playing, such as the sounds of pedals being depressed and the associated machinery shifting within the piano, which some consider a benefit. These limitations apply to most acoustic instruments and their sampled counterparts,

2479-418: The 1960s, both ROM and its mutable counterpart static RAM were implemented as arrays of transistors in silicon chips; however, a ROM memory cell could be implemented using fewer transistors than an SRAM memory cell, since the latter needs a latch (comprising 5-20 transistors) to retain its contents, while a ROM cell might consist of the absence (logical 0) or presence (logical 1) of one transistor connecting

2546-484: The N1X, N3X and for the NU1X, CFX for NU1) Concert Grand pianos and attempt to emulate all aspects of conventional piano sound and play, down to the tactile response of keys and pedals. In covering the piano's release, Slate editor Chris Wilson wrote that the AvantGrand piano represents a substantial functional improvement over the conventional piano, while sounding practically indistinguishable from one for 95% of

2613-466: The ROM chips, and the presence or absence of these features will represent either a 1 or a 0 bit, depending on the ROM design. Thus by design, any attempts to electronically change the data will fail, since the data is defined by the presence or absence of physical features or structures that cannot be electronically changed. For every software program, even for revisions of the same program, the entire mask must be changed, which can be costly. In mask ROM,

2680-457: The ability to generate sounds that vary more freely depending on how the keys have been struck, in addition to allow a more realistic implementation of the distinctive resonances and acoustical noises of acoustic pianos. Most digital pianos can produce a variety of different piano timbres . For example, a digital piano may have settings for a grand piano , an upright piano, a tack piano , a harpsichord and various electric piano models such as

2747-538: The casework of traditional upright pianos with a fully enclosed bottom part and metallic weighted sustain and soft pedals that resemble traditional piano pedals. An opposite and 2000s-era trend is to produce an instrument which has a unique and distinctive appearance, unobtainable with a conventional wooden-cabinet instrument. These instruments have a modern appearance, with a sleek plastic cabinet that makes no attempt to emulate traditional instruments. Yamaha , Kawai and Casio make models which are designed to stand against

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2814-407: The computer can handle sound generation, mixing of tracks, music notation, musical instruction, and other music composition tasks. The physical form of a digital piano can vary considerably. Traditional digital pianos are designed to resemble the console of an electronic organ or a spinet harpsichord but usually having a stand rather than fully enclosed lower section. Some models are based on

2881-423: The contents of a Laser ROM by using a laser to alter the electrical properties of only some diodes on the ROM, or by using a laser to cut only some polysilicon links, instead of using a mask. By applying write protection , some types of reprogrammable ROMs may temporarily become read-only memory. There are other types of non-volatile memory which are not based on solid-state IC technology, including: Although

2948-660: The cost of an integrated circuit strongly depends on its size, mask ROM is significantly cheaper than any other kind of semiconductor memory. However, the one-time masking cost is high and there is a long turn-around time from design to product phase. Design errors are costly: if an error in the data or code is found, the mask ROM is useless and must be replaced in order to change the code or data. As of 2003 , four companies produce most such mask ROM chips: Samsung Electronics , NEC Corporation , Oki Electric Industry , and Macronix . Some integrated circuits contain only mask ROM. Other integrated circuits contain mask ROM as well as

3015-463: The data is physically encoded in the circuit, so it can only be programmed during fabrication. This leads to a number of serious disadvantages: Subsequent developments have addressed these shortcomings. Programmable read-only memory (PROM), invented by Wen Tsing Chow in 1956, allowed users to program its contents exactly once by physically altering its structure with the application of high-voltage pulses. This addressed problems 1 and 2 above, since

3082-445: The difference often being described as "visceral". Many digital pianos, especially those that resemble acoustic pianos, have built-in pedals that function much as those on acoustic pianos. Commercially available pedal switches, commonly used for regular electronic keyboards, can also be used, especially on portable models. On an acoustic piano the sustain pedal lifts the dampers for all strings, allowing them to resonate naturally with

3149-453: The drive controller) and by increasingly sophisticated read/write algorithms in drive firmware. Because they are written by forcing electrons through a layer of electrical insulation onto a floating transistor gate , rewriteable ROMs can withstand only a limited number of write and erase cycles before the insulation is permanently damaged. In the earliest EPROMs, this might occur after as few as 1,000 write cycles, while in modern Flash EEPROM

3216-418: The endurance may exceed 1,000,000. The limited endurance, as well as the higher cost per bit, means that Flash-based storage is unlikely to completely supplant magnetic disk drives in the near future. The timespan over which a ROM remains accurately readable is not limited by write cycling. The data retention of EPROM, EAROM, EEPROM, and Flash may be time-limited by charge leaking from the floating gates of

3283-431: The feel of an acoustic piano may be described as semi-weighted , while those that are more accurate may be said to possess hammer action . Some digital pianos incorporate actual hammers to better simulate a grand piano's touch. In a typical digital piano with hammer action, as the key (1) is depressed, a cam (4) underneath the key presses on one end of a hammer (5), lifting the hammer weight (6). A retaining hook (2) with

3350-721: The form of USB flash drives and tiny microSD memory cards , for example), and much lower power consumption. Many stored-program computers use a form of non-volatile storage (that is, storage that retains its data when power is removed) to store the initial program that runs when the computer is powered on or otherwise begins execution (a process known as bootstrapping , often abbreviated to " booting " or "booting up"). Likewise, every non-trivial computer needs some form of mutable memory to record changes in its state as it executes. Forms of read-only memory were employed as non-volatile storage for programs in most early stored-program computers, such as ENIAC after 1948 . (Until then it

3417-431: The form of erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM) and flash memory can be erased and re-programmed. But usually, this can only be done at relatively slow speeds, may require special equipment to achieve, and is typically only possible a certain number of times. The term "ROM" is sometimes used to refer to a ROM device containing specific software or

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3484-442: The integrated circuit, although fuse re-growth was once a problem in some systems. The contents of ROM chips can be extracted with special hardware devices and relevant controlling software. This practice is common for, as a main example, reading the contents of older video game console cartridges . Another example is making backups of firmware/OS ROMs from older computers or other devices - for archival purposes, as in many cases,

3551-499: The invention of the integrated circuit came mask ROM . Mask ROM consists of a grid of word lines (the address input) and bit lines (the data output), selectively joined with transistor switches, and can represent an arbitrary look-up table with a regular physical layout and predictable propagation delay . Mask ROM is programmed with photomasks in photolithography during semiconductor manufacturing . The mask defines physical features or structures that will be removed, or added in

3618-475: The memory cell transistors. Early generation EEPROM's, in the mid-1980s generally cited 5 or 6 year data retention. A review of EEPROM's offered in the year 2020 shows manufacturers citing 100 year data retention. Adverse environments will reduce the retention time (leakage is accelerated by high temperatures or radiation ). Masked ROM and fuse/antifuse PROM do not suffer from this effect, as their data retention depends on physical rather than electrical permanence of

3685-548: The memory chip (hence the name). Mask ROM can be made in several ways, all of which aim to change the electrical response of a transistor when it is addressed on a grid, such as: Mask ROM transistors can be arranged in either NOR or NAND configurations and can achieve one of the smallest cell sizes possible as each bit is represented by only one transistor. NAND offers higher storage density than NOR. OR configurations are also possible, but compared to NOR it only connects transistors to V cc instead of V ss . Mask ROMs used to be

3752-417: The most inexpensive, and are the simplest semiconductor memory devices, with only one metal layer and one polysilicon layer, making it the type of semiconductor memory with the highest manufacturing yield (the highest number of working devices per manufacturing run). ROM can be made using one of several semiconductor device fabrication technologies such as CMOS , nMOS , pMOS , and bipolar transistors . It

3819-405: The movement of jumper plugs to apply write-enable signals, and special lock/unlock command codes. Modern NAND Flash can be used to achieve the highest write speeds of any rewritable ROM technology, with speeds as high as 10 GB / s in an SSD. This has been enabled by the increased investment in both consumer and enterprise solid-state drives and flash memory products for higher end mobile devices. On

3886-858: The need for a firmware upgrade arise. However, simple and mature sub-systems (such as the keyboard or some communication controllers in the integrated circuits on the main board, for example) may employ mask ROM or OTP (one-time programmable). ROM and successor technologies such as flash are prevalent in embedded systems . These are in everything from industrial robots to home appliances and consumer electronics ( MP3 players , set-top boxes , etc.) all of which are designed for specific functions, but are based on general-purpose microprocessors . With software usually tightly coupled to hardware, program changes are rarely needed in such devices (which typically lack hard disks for reasons of cost, size, or power consumption). As of 2008, most products use Flash rather than mask ROM, and many provide some means for connecting to

3953-442: The notes played. Only high-end professional digital pianos can reproduce this sympathetic resonance effect. Earlier digital pianos, such as those produced in the 1990s, often had polyphony limited to 32 or 64 notes. Some digital piano implementations, like Roland V-Piano, Yamaha MODUS, Casio Celviano Grand Hybrid, and the software-based Pianoteq , use mathematical models based on acoustic pianos to generate sound, which brings

4020-459: The original chips are PROMs and thus at risk of exceeding their usable data lifetime. The resultant memory dump files are known as ROM images or abbreviated ROMs , and can be used to produce duplicate ROMs - for example to produce new cartridges or as digital files for playing in console emulators . The term ROM image originated when most console games were distributed on cartridges containing ROM chips, but achieved such widespread usage that it

4087-443: The relative speed of RAM vs. ROM has varied over time, as of 2007 large RAM chips can be read faster than most ROMs. For this reason (and to allow uniform access), ROM content is sometimes copied to RAM or shadowed before its first use, and subsequently read from RAM. For those types of ROM that can be electrically modified, writing speed has traditionally been much slower than reading speed, and it may need unusually high voltage,

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4154-499: The tuning of another instrument (e.g. a pipe organ ). Like other electronic musical instruments, they can be connected to an amplifier or a PA system to produce a sound loud enough for a large venue or, at the other extreme, may be heard through headphones only. Some digital pianos can emulate other sounds besides the piano, the most common ones being pipe organ , electric piano , Hammond organ , and harpsichord . Digital pianos are often used in music schools and music studios as

4221-412: The weighted keys. As a result, the feel of the keys is usually much less realistic than other digital pianos. However, it still retain the emulated weight mechanism (lower keys are heavier than higher ones), though not as precise as more expensive pianos, but far more true to life than a keyboard. Furthermore, certain models include synthetic ivory-like keys as opposed to standard plastic keys. Hybrids are

4288-431: The world's pianists. This article relating to electronic musical instruments is a stub . You can help Misplaced Pages by expanding it . Digital piano While digital pianos may sometimes fall short of acoustic ones in feel and sound, their advantages include being smaller, weighing much less, and costing less than an acoustic piano. In addition, they do not need to be tuned, and their tuning can be modified to match

4355-575: Was cheap compared to RAM. Notably, the display adapters of early personal computers stored tables of bitmapped font characters in ROM. This usually meant that the text display font could not be changed interactively. This was the case for both the CGA and MDA adapters available with the IBM PC XT. The use of ROM to store such small amounts of data has disappeared almost completely in modern general-purpose computers. However, NAND Flash has taken over

4422-408: Was not a stored-program computer as every program had to be manually wired into the machine, which could take days to weeks.) Read-only memory was simpler to implement since it needed only a mechanism to read stored values, and not to change them in-place, and thus could be implemented with very crude electromechanical devices (see historical examples below). With the advent of integrated circuits in

4489-500: Was often comparable or similar to that of a conventional keyboards due to a simpler sound synthesis system, though some models, often utilize a similar sound generation system as the more advanced model lineups of the same manufacturer. Many of them also contain a wide assortment of sounds, like one would expect from an electronic keyboard, including sound effects and drum kits . Also like conventional keyboards, these digital pianos often feature an automated " rhythm section " function which

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