A♯9+♯1

A sharp dominant ninth, add sharp 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: A♯9+♭2, A♯9+♭9, B♭9+♯1, B♭9+♭2, B♭9+♭9, Bdim7+♯1+♭1.

Notes in this chord: A♯, A♯♯, C♯♯, E♯, G♯, B♯. Integer notation: {0, 2, 5, 8, 10, 11}.

Nearby chords (one less note): B♭9, B♭9♭9, B♭+2+♯1, Fm+4+♯4, Bdim7+♯1, A♭♭5+2+♯2.

Nearby chords (one more note): B♭11+♯1, G11♯9+♯1, B♭9+♯1+♯2, B♭9+♯1+♯5, B♭9+♯1+♯7, B♭11♯11+♯1.

Parallel chords (same structure, different root): C9+♯1, D9+♯1, E9+♯1, F9+♯1, G9+♯1, A9+♯1, B9+♯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, B♯9+♯1.

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

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