The software features filter resonance, VDA modulation, and master effects that have been powered up to a total of 18 systems. Numerous sounds available only from the M1, most notable the famous “M1 Piano” sound, were taken up by musicians and producers around the world, and are still in use today. As a pioneer of PCM tone generation, it was notable not just for the reality of its sound, but also for the distinctive resonance and tonal character that demonstrated the high level of Korg's voicing technology. Along with its innovative 'workstation' concept, the M1's 'AI' (Advanced Integrated) synthesis system used PCM waveforms and digital effects to deliver fully complete program and combination sounds. The first workstation synthesizer, released in 1988, which defined the sound of the late ’80s and early ’90s: M1.
