In 1972, PAiA released the 2720 modular synthesizer series, which used shirt-buttons attached to wires in lieu of a
keyboard. A version with a keyboard, the 2720, was later released. The next modular series, the 4700s, featured an improved, quieter design. The P4700J series was computer controlled (using a
MOS 6503 processor) that allowed
polyphony for the first time on a PAiA modular synthesizer. As interest in modular synthesizers died down, PAiA stopped selling modular kits in the late 1980s and 1990s. In the early 2000s (decade), they launched the 9700 modular synthesizer line. In 1974, PAiA released the $48.95 3740 Gnome, a small, simple, with a resistive vinyl strip, as a keyboard-less synthesizer, designed for creating non-harmonic sound effects, able to run on two nine volt batteries (+9 and +18 volts). The next year they released the first programmable
drum machine called the Programmable Drum Set. Later they released the Oz, another small synthesizer, this time with an 18-key keyboard. In the 1990s PAiA released the FatMan Analog MIDI Synth, a
MIDI capable, monophonic, analog synthesizer. ==Influence==