B flat dominant ninth, flat ninth, add sixth, add sharp seventh

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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: G9+♯1+♯2, G9+♯1+♯9, G9+♯2+♭2, B♭9♭9+6+♭1, B♭9♭9+♯7+♭7.

Notes in this chord: B♭, D, F, G, A♭, A, C♭. Integer notation: {2, 5, 7, 8, 9, 10, 11}.

Nearby chords (one less note): G9+♯1, G9+♯2, Gm9+♯1, B♭9♭9+6, B♭9♭9+♯7, G+2+♯1+♯2, Fdim+2+4+♯3.

Nearby chords (one more note): F13♭5+♯2, FM13♭5+♯2, G11+♯1+♯2, G9+♯1+♯2+♯7, D♭13♯11♭9+♯5.

Parallel chords (same structure, different root): C9♭9+6+♯7, D9♭9+6+♯7, E9♭9+6+♯7, F9♭9+6+♯7, G9♭9+6+♯7, A9♭9+6+♯7, B9♭9+6+♯7, D♭9♭9+6+♯7, E♭9♭9+6+♯7, G♭9♭9+6+♯7, A♭9♭9+6+♯7.

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