When Korg dropped the M1 in 1988, they didn't just release another synthesizer—they invented the modern music workstation and basically wrote the soundtrack to the late 80s and 90s. This was the keyboard that made it possible to have an entire production setup in one box, and it showed up on everything from Depeche Mode records to The Orb's ambient masterpieces.
The M1 runs on Korg's AI Synthesis engine, which combines 4MB of high-quality PCM waveforms with analog-style subtractive controls. You get 16 voices of polyphony with dual oscillators per voice, each feeding into a lowpass filter with dedicated pitch, filter, and amplifier envelopes. Two LFOs give you modulation options, and the effects section packs 33 different processors including reverb, delay, chorus, and distortion. The 61-key keyboard is velocity and aftertouch sensitive, and everything routes through stereo outputs with individual channel outputs available. The whole unit weighs just 13kg and has a distinctly curved, minimalist design that still looks modern decades later.
What really set the M1 apart was its multitimbral architecture—you could layer up to eight different sounds across eight MIDI channels simultaneously, which meant you could build entire arrangements on a single keyboard. The built-in 8-track sequencer holds up to 7,700 notes across 10 songs and 100 patterns, making it genuinely capable for composition and production work. You get 100 patches to work with, full MIDI implementation with In/Out/Thru, and support for two pedals. The front panel keeps things intentionally minimal with a backlit LCD and illuminated buttons, though some users found the sparse control layout meant diving into menus more than they'd like.
The M1 became legendary partly because of its sounds—that piano preset alone became ubiquitous—but mostly because it proved you didn't need a studio full of gear to make professional music. It's still sought after by producers and musicians who want that particular digital warmth and the workflow that defined a generation.
