B sharp dominant thirteenth, flat ninth

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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: C13♭9, C11♭9+6, FM13♭13, E♯M13♭13, F13♯7♭13, E♯13♯7♭13.

Notes in this chord: B♯, D♯♯, F♯♯, A♯, C♯, E♯, G♯♯. Integer notation: {0, 1, 4, 5, 7, 9, 10}.

Nearby chords (one less note): FM11, C11♭9, C9♭9+6, FM11♯5, Gm11♭5, C11♭7♭9, A+♯1+♯2+♯5.

Nearby chords (one more note): C13+♯1, C13♯9+♯1, C13♭9+♯4, C13♭9+♯5, G13♭5+♯2.

Parallel chords (same structure, different root): C13♭9, D13♭9, E13♭9, F13♭9, G13♭9, A13♭9, B13♭9, C♭13♭9, D♭13♭9, E♭13♭9, F♭13♭9, G♭13♭9, A♭13♭9, B♭13♭9, C♯13♭9, D♯13♭9, E♯13♭9, F♯13♭9, G♯13♭9, A♯13♭9.

This chord contains too many notes to play on the 6 strings of guitar standard EADGBE tuning (change tuning or instrument).