A4+9+♯1

A major fourth, add 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: A4+2+♯1, A4+2+♭2, B♭3+♯1+♯2+♯7, B♭3+♯1+♯2+♭1, B♭3+♯1+♯7+♯9.

Notes in this chord: A, A♯, C♯, D, B. Integer notation: {1, 2, 9, 10, 11}.

Nearby chords (one less note): A4+2, A4+♯1, A3+2+♯1, B♭3+♯1+♯2, B♭3+♯1+♯7.

Nearby chords (one more note): A+2+4+♯1, G+2+♯2+♯4, A4+2+♯1+♯2, A4+2+♯1+♯4, G♭+4+♯2+♯5, B♭+♯1+♯2+♭1, A♭dim+2+4+♯1.

Parallel chords (same structure, different root): C4+9+♯1, D4+9+♯1, E4+9+♯1, F4+9+♯1, G4+9+♯1, B4+9+♯1, C♭4+9+♯1, D♭4+9+♯1, E♭4+9+♯1, F♭4+9+♯1, G♭4+9+♯1, A♭4+9+♯1, B♭4+9+♯1, C♯4+9+♯1, D♯4+9+♯1, E♯4+9+♯1, F♯4+9+♯1, G♯4+9+♯1, A♯4+9+♯1, B♯4+9+♯1.

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

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