A+♯9+♭1

A major, add sharp ninth, 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: E6♯5+4, A+♯2+♭1, A+♭1+♭3, E6♯5+11, F♭6♯5+4, F♭6♯5+11.

Notes in this chord: A♭, A, C♯, E, B♯. Integer notation: {0, 1, 4, 8, 9}.

Nearby chords (one less note): A+♯2, A+♭1, C6♯5, E6♯5, A♭4+♯1.

Nearby chords (one more note): AM11♯9, AM9+♯2, C6+♯1+♯5, G♭m11♯11, A+♯1+♯2+♭1, A♭+4+♯1+♯5, F+♯2+♯5+♭1.

Parallel chords (same structure, different root): C+♯9+♭1, D+♯9+♭1, E+♯9+♭1, F+♯9+♭1, G+♯9+♭1, B+♯9+♭1, C♭+♯9+♭1, D♭+♯9+♭1, E♭+♯9+♭1, F♭+♯9+♭1, G♭+♯9+♭1, A♭+♯9+♭1, B♭+♯9+♭1, C♯+♯9+♭1, D♯+♯9+♭1, E♯+♯9+♭1, F♯+♯9+♭1, G♯+♯9+♭1, A♯+♯9+♭1, B♯+♯9+♭1.

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

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