Adim+♭2

A diminished, add flat second

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MSK 007 Leapfrog VCF (patch; see in online store)
MSK 009 Coiler VCF (patch; see in online store)

Equivalent chord symbols: F7-1+4, Adim+♯1, Adim+♭9, E♯7-1+4, F11-1-9, E♯11-1-9.

Notes in this chord: A, B♭, C, E♭. Integer notation: {0, 3, 9, 10}.

Keys in which this chord fits with this spelling: B♭M, Gm

Keys in which this chord fits with enharmonic spelling: A♯M

Nearby chords (one less note): Adim, E♭6-3, B♭2+♯7, E♭sus4♯4.

Nearby chords (one more note): F7+4, E♭6+♯4, A♭+2+♯1, Adim7+♯1, Am+♯1+♯4, Adim+2+♯1, Adim+4+♯1, Adim+♯1+♯3.

Parallel chords (same structure, different root): Cdim+♭2, Ddim+♭2, Edim+♭2, Fdim+♭2, Gdim+♭2, Bdim+♭2, C♭dim+♭2, D♭dim+♭2, E♭dim+♭2, F♭dim+♭2, G♭dim+♭2, A♭dim+♭2, B♭dim+♭2, C♯dim+♭2, D♯dim+♭2, E♯dim+♭2, F♯dim+♭2, G♯dim+♭2, A♯dim+♭2, B♯dim+♭2.

Experimental fretting charts for guitar standard EADGBE tuning (change tuning or instrument):

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