A+4+♯1+♯5

A major, add fourth, add sharp root, add sharp fifth

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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+♯1+♯3+♯5, A+11+♯1+♯5, A♯+♯2+♯4+♭1, A♯+♯4+♯9+♭1, B♭+♯2+♯4+♭1, B♭+♯4+♯9+♭1.

Notes in this chord: A, A♯, C♯, D, E, E♯. Integer notation: {1, 2, 4, 5, 9, 10}.

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

Nearby chords (one more note): FM13♯5, E13♭5♭9, C13-5+♯1, FM13♯5♭9, Bm11♭5+♯7, B♭M11♯9+♯4.

Parallel chords (same structure, different root): C+4+♯1+♯5, D+4+♯1+♯5, E+4+♯1+♯5, F+4+♯1+♯5, G+4+♯1+♯5, B+4+♯1+♯5, C♭+4+♯1+♯5, D♭+4+♯1+♯5, E♭+4+♯1+♯5, F♭+4+♯1+♯5, G♭+4+♯1+♯5, A♭+4+♯1+♯5, B♭+4+♯1+♯5, C♯+4+♯1+♯5, D♯+4+♯1+♯5, E♯+4+♯1+♯5, F♯+4+♯1+♯5, G♯+4+♯1+♯5, A♯+4+♯1+♯5, B♯+4+♯1+♯5.

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

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