Here’s an interesting vid of an omnichord modification – this new take seems to allow easier access to the instrument’s individual touch controls.

Omnichord

What’s an omnichord, you ask? In a nutshell – it’s sort of an electronic version of an autoharp. A chord button is pressed on one side of the instrument, allowing the user to ‘strum’ the notes of that chord via the instrument’s touchplate

Learn more at – The Suzuki Omnichord
& – Omnichord on Wikipedia

Related:
Circuitbent Omnichord
Circuit Bending – Make: Video Podcast