An electronic keyboard, portable keyboard, or digital keyboard is an electronic musical instrument based on keyboard instruments. Electronic keyboards include synthesizers, digital pianos, stage pianos, electronic organs and digital audio workstations. In technical terms, an electronic keyboard is a rompler-based synthesizer with a low-wattage power amplifier and small loudspeakers.
ARP Instruments, Inc. was a Lexington, Massachusetts manufacturer of electronic musical instruments, founded by Alan Robert Pearlman in 1969. It created a popular and commercially successful range of synthesizers throughout the 1970s before declaring bankruptcy in 1981. The company earned a reputation for producing excellent sounding, innovative instruments and was granted several patents for the technology it developed.
An electric organ, also known as electronic organ, is an electronic keyboard instrument which was derived from the harmonium, pipe organ and theatre organ. Originally designed to imitate their sound, or orchestral sounds, it has since developed into several types of instruments:
Monotimbral is usually used in reference to electronic synthesizers which can produce a single timbre at a given pitch when pressing one key or multiple keys.
The Roland Jupiter-4 (JP-4) was an analog synthesizer manufactured by the Roland Corporation between 1978 and 1981. It was notable as the company's first self-contained polyphonic synthesizer, and for employing digital control of analog circuits, allowing for such features as programmable memory, voice assignment modes, an arpeggiator, polyphonic portamento and others.
The microKORG is a MIDI-capable digital synthesizer/vocoder from Korg featuring DSP-based analog modelling. The synthesizer is built in such a way that it is essentially a Korg MS-2000 with a programmable step arpeggiator, a less advanced vocoder, lack of motion sequencing, lack of an XLR microphone input, and in a smaller case with fewer real-time control knobs.
Chorus is an audio effect that occurs when individual sounds with approximately the same time, and very similar pitches, converge. While similar sounds coming from multiple sources can occur naturally, as in the case of a choir or string orchestra, it can also be simulated using an electronic effects unit or signal processing device.
Polyphony is a property of musical instruments that means that they can play multiple independent melody lines simultaneously. Instruments featuring polyphony are said to be polyphonic. Instruments that are not capable of polyphony are monophonic or paraphonic.
The Solina String Synthesizer, also erroneously known as the ARP Solina String Synthesizer or sometimes the ARP String Synthesizer, is a combination of a string synthesizer and synthesizer. It is a hybrid model which combined both the Solina String Ensemble string synthesizer and the ARP Explorer monophonic synthesizer. It was built in Bodegraven, Netherlands by Eminent B.V. Supposedly only about 100 were ever produced. The addition of the ARP Explorer to the Solina string sounds made for a very powerful combination.
The ARP Quadra was a 61-key analog synthesizer produced by ARP Instruments, Inc. from 1978 to 1981. The machine combined pre-existing products: the Omni, Odyssey, a Solina-esque string synthesizer unit, a phaser and a divide-down organ with ADSR envelope, and a 4075 24 db low pass filter into one box. It has four sections. Bass is on the bottom two octaves, has two unison bass circuits, with AR and a single pole low pass filter and a related AD envelope for cutoff. A string section is similar to the ARP Omni. Poly Synth, and a two voice Lead Synth similar to the Odyssey and a five way mixer with four unit outputs, a stereo pair, a line mono and an XLR out.
The ARP Omni was a polyphonic analog synthesizer manufactured by ARP Instruments, Inc.
The Freeman String Symphonizer was a 5-octave synthesizer of the 1970s. It was finally manufactured by the Chicago Musical Instrument Co. and was also known as the Cordovox CSS. Its sound was related to that of the ARP String Ensemble – cool, glassy-sounding strings. Eventually, its inventor Ken Freeman tried to strike a deal with the company Ling but they abandoned their interest in it. Lowrey a division of CMI finally struck a deal after some deliberation.
The Eminent 310 Unique is a home electronic organ that was built and introduced in 1972 by the Dutch organ manufacturer Eminent, at the time based in Bodegraven, the Netherlands. It was the first organ to include a string section, making it the first commercial polyphonic string synthesizer on the market. It is prominently featured on Jean Michel Jarre's albums Oxygène (1977) and Équinoxe (1978).
Eminent digital organs is a brand of electronic organ for use in churches, halls and homes. The company is headquartered in Lelystad (Flevoland), The Netherlands.
The Roland RS-202 was a polyphonic string synthesizer, introduced by Roland in 1976. It was the successor to the Roland RS-101, released in 1975.
A string synthesizer or string machine is a synthesizer designed to make sounds similar to those of a string section. Dedicated string synthesizers occupied a specific musical instrument niche between electronic organs and general-purpose synthesizers in the 1970s and early 1980s, until advances in digital signal processing technology allowed the production of inexpensive general-purpose polyphonic synthesizers and samplers, which made the existence of a separate type of instrument unnecessary.
The Yamaha DX21 is a digital controlled bi-timbral programmable digital FM synthesizer with a four operator synth voice generator which was released in 1985. It uses sine wave-based frequency modulation (FM) synthesis. It has two FM tone generators and a 32-voice random-access memory (RAM), 32 user voices and 128 read-only memory (ROM) factory preset sounds. As a programmable synth, it enables users to create their own unique synthesized tones and sound effects by using the algorithms and oscillators. The instrument weighs 8 kg (17.6 lbs). On its release, it sold for $795.
The history of home keyboards lies in mechanical musical instrument keyboards, electrified keyboards and 1960s and 1970s synthesizer technologies.
The Korg PE-1000(Polyphonic Ensemble) is a preset-based polyphonic analog synthesizer released by Korg in 1976. It was Korg's first polyphonic synthesizer and was marketed in the US as the Univox K4.
The Korg Collection is a suite of virtual instruments and effects that emulate Korg's various hardware synthesizers. The original release included virtual versions of the MS-20, Polysix and Wavestation. Subsequent additions have expanded the collection to feature emulations of the Mono/Poly, M1, ARP Odyssey, Triton, miniKORG 700S, Prophecy and microKORG. These plugins utilize Korg's Component Modeling Technology (CMT) to simulate the analog characteristics of the original instruments. The collection is compatible with VST, AU, and AAX plugin formats and includes standalone versions for use outside a digital audio workstation (DAW).
