A♯+♭1

A sharp major, add flat root

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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: Dm6, A♯M7, B♭M7, A♯7♯7, B♭+♭1, B♭7♯7.

Notes in this chord: A, A♯, C♯♯, E♯. Integer notation: {2, 5, 9, 10}.

Keys in which this chord fits with enharmonic spelling: FM, B♭M, E♯M, A♯M, Dm, Gm

Nearby chords (one less note): B♭, Dm, F4, D5+♯5.

Nearby chords (one more note): Gm9, B♭M9, B♭7+♯7, B♭+4+♭1, D+♯2+♯5, B♭+♯1+♭1, B♭+♯2+♭1, B♭+♯4+♭1.

Parallel chords (same structure, different root): C+♭1, D+♭1, E+♭1, F+♭1, G+♭1, A+♭1, B+♭1, C♭+♭1, D♭+♭1, E♭+♭1, F♭+♭1, G♭+♭1, A♭+♭1, B♭+♭1, C♯+♭1, D♯+♭1, E♯+♭1, F♯+♭1, G♯+♭1, B♯+♭1.

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

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