Originally conceived as an electronic Autoharp,[2] the Omnichord found popularity due to its portability, its unique timbre, and its value as a kitsch object.

The various Omnichord models feature a touch plate that the user strums, organ-like chords, preset drum rhythms and auto-bass line functionality.

[citation needed] Suzuki started with the Tronichord 'PC-27', renamed the Portachord on some units, followed by the first Omnichord 'OM-27', which featured improvements to the interface, such as the chord buttons.

[7] In 1989, Suzuki released the OM-100 and OM-200M, which replaced the OM-36 and OM-84, adding updated sounds, an angled strum plate for more comfortable playing, and an optional strap for standing performances.

[8] The OM-200M additionally introduced a MIDI output port, allowing the user to control other MIDI-equipped devices using the Omnichord.

In February 2023, Suzuki announced a new Omnichord model to celebrate the 70th anniversary of the company,[12] called the OM-108, available for pre-order and shipping sometime in mid-2024.

[13] Eurythmics used chords and Sonic Strings from an Omnichord OM-27 on "Love Is a Stranger" from their 1983 album Sweet Dreams (Are Made of This).

[17] Canadian producer Daniel Lanois has used Omnichords throughout his career; he used one on "Deep Blue Day", from the 1983 album Apollo: Atmospheres and Soundtracks by Lanois, Brian Eno and Roger Eno, saying "It mimics strings and has a little built-in bass element: almost one-stop instrument that provides a whole sound of an entire band.