Omnichord System Two (OM-84) – Vintage Songwriting Machine, Fully Functional and Ready to Play

If you’ve been waiting for the right Omnichord to add to your studio, this System Two (OM‑84) is the sweet spot: classic mid‑’80s sound, expanded chord options, and that magical SonicStrings strum plate that turns anyone into a songwriter. With major, minor, and seventh chords available in all 12 keys, you get up to 84 chord combinations at your fingertips—no theory degree or guitar calluses required. Just pick a key, press a chord button, and strum for instant, harmonically rich accompaniment.

This OM‑84 includes the built‑in rhythm section with multiple styles (rock, disco, Latin, country, waltz, and more), plus auto‑bass and chord backing so you get a complete “band in a box” that follows your chord changes. It’s ideal for bedroom producers, songwriters, and vintage‑gear lovers who want something more inspiring (and more fun) than another virtual instrument. The SonicStrings strum plate is responsive and expressive, giving you everything from gentle harp‑like textures to rhythmic chanks that sit perfectly in a modern mix.

Condition-wise, this unit is in excellent working order: all chord buttons, rhythms, and controls function as they should, and the strum plate tracks consistently across its full range. Cosmetically, it shows normal signs of age for a mid‑’80s instrument but nothing that affects performance—exact details are visible in the photos. It’s plug‑and‑play and ready to drop straight into your writing rig, pedalboard chain, or recording setup.

Why this Omnichord System Two belongs in your studio:

• Instantly playable, even for non‑musicians
• 84 chord combinations across all 12 keys
• Built‑in drum machine, auto‑bass, and chord backing
• Iconic SonicStrings strum plate for unique textures
• Perfect for lo‑fi, indie, synth-pop, ambient, and experimental setups

If you’ve been scrolling past Omnichords thinking, “One day…,” this is the one to grab. Feel free to message with any questions or if you’d like a short video demo before purchasing.