A13+♯12
A dominant thirteenth, add sharp twelfth
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MSK 007 Leapfrog VCF
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MSK 009 Coiler VCF
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Equivalent chord symbols: A13+♯5, A13+♭6, Bm13+♯4, DM13+♯2, C♭m13+♯4, D13♯7+♯2.
Notes in this chord: A, C♯, E, G, B, D, E♯, F♯. Integer notation: {1, 2, 4, 5, 6, 7, 9, 11}.
Nearby chords (one less note): A13, A13♯5, G13♯11, A9+6+♯5, DM11+♯2, Em11+♯1, A13-1+♯5, A13♭7♭13.
Nearby chords (one more note): A13+♯1+♯5, A13+♯2+♯5, A13+♯4+♯5, E13+♯1+♯2.
Parallel chords (same structure, different root): C13+♯12, D13+♯12, E13+♯12, F13+♯12, G13+♯12, B13+♯12, C♭13+♯12, D♭13+♯12, E♭13+♯12, F♭13+♯12, G♭13+♯12, A♭13+♯12, B♭13+♯12, C♯13+♯12, D♯13+♯12, E♯13+♯12, F♯13+♯12, G♯13+♯12, A♯13+♯12, B♯13+♯12.
This chord contains too many notes to play on the 6 strings of guitar standard EADGBE tuning (change tuning or instrument).