It has some scuffs and scrapes and small stains but, works great. Tested on AC adapter and batteries. Black, battery ribbon is still intact. See pictures.

Omnichords are a great tool for coming up with new songs or playing your favorites without having to learn music theory or playing technique. Chords are arranged in the circle of 5ths making it easy and logical.

Includes:

• Operation (owners) Manual. The astronaut on the back looks like actor Mark Linn-Baker from the TV sitcom Perfect Strangers (1986-93).
• Compatible AC adapter.
• Most of bottom and top styrofoam pieces.

Batteries not included.

This is the best-sounding Omnichord (including the QChord and OM-108) in my opinion.

Features:

• 84 chords (12 keys x 7 variations: major (top row buttons), minor (middle row), (minor) 7th (eg. C7) (bottom row), major 7th (eg Cmaj7th) (top + 
bottom), minor 7 (eg. Cm7) (middle + bottom), diminished (eg. Cdim) (top + middle) and aug 5th (all three buttons))
• 10 punchy, preset 
analog drum patterns with optional auto chord and bass accompaniment
• "SonicStrings" voice has a magical shimmer
• Manual chord memory sequencer
• Built-in speaker
• You can use the darker buttons as a basic monophonic keyboard as you toggle through the chords you programmed previously
• 1/4" output jack
• Runs on 8 "C" batteries or 12V negative (-) tip AC adapter (tested and works on both).

The OM-36 is a simpler version of the OM-84. It lacks Voice 2, chord programmer, foot pedal input, and melody keyboard functions of the OM-84.

A few recordings that feature the Omnichord OM-84: "LSF" (Kasabian), "Pink Funeral" (Beach House), "War On War" (Wilco), "Twin Of Myself" (Black Moth Super Rainbow). Search Spotify for playlists of Omnichord songs.

Daniel Lanois used an Omnichord on U2 (The Joshua Tree), Brandon Flowers (Flamingo), Bob Dylan (Oh Mercy), Robbie Robertson (1987) & Willie Nelson (Teatro). Swedish music producer Shellback used an Omnichord on Taylor Swift's song "The Fate of Ophelia". See the Wikipedia page on that song.

Some other notable Omnichord users: David Byrne, Sharon Van Etten, David Lynch, Harry Styles, Pink, James Mercer (LCD Soundsystem), Jack Antonoff (Taylor Swift, Lana Del Rey, Dixie Chicks), Gene (Ween), Joel Amey (Wolf Alice), Joe Walker (King Gizzard And The Lizard Wizard), The Magnetic Fields, John Mayer, Hugo Nicolson (Julian Cope, Father John Misty), Dave Depper (Death Cab For Cutie), Jared Followill (Kings Of Leon), Natasha Khan (Bat For Lashes), Wally De Backer (Gotye), Mike Mogis (Cursive, M. Ward, Bright Eyes, etc.), Danny Kortchmar, Cat Martino (Sufjan Stevens), Derry deBorja (Jason Isbell And The 400 Unit), Jay Joyce (Art Garfunkel, Orville Peck, Emmylou Harris, Eric Church, Shawn Mullins), Joshua Block (White Denim, UNKLE), James Dean Bradfield (Manic Street Preachers), Ross Collier (Kaleo, Bon Iver, Robben Ford), Karen O (Yeah Yeah Yeahs), etc.

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