I am currently working on an omnichord inspired controller, here is a small recording of the first prototype ! : r/synthesizers
not a synth but cool MIDI controller for triggering synths! : r/synthesizers
MATRIXSYNTH: Suzuki Omnichord OM-250m MIDI Version
Teensy LC chord strummer | Hackaday.io
Omnichord | Stepreo
Le Strum MIDI Chord Controller 'Like A Cross Between A Stylophone & An Omnichord' – Synthtopia
Exile Vancouver - The Q-Chord is a direct descendant of the much coveted Omnichord and can be used as midi controller sending out chords, strum, drums, and bass on four separate channels.