G flat diminished sixth, add fourth

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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: D7+6, Bm9♭9, D6+♯6, D7+13, C♭m9♭9, F♯dim6+4.

Notes in this chord: G♭, B♭♭, C♭, D♭♭, E♭♭. Integer notation: {0, 2, 6, 9, 11}.

Keys in which this chord fits with this spelling: F♭m

Keys in which this chord fits with enharmonic spelling: GM, Em

Nearby chords (one less note): D6, D7, Am4+2, Bm+♯1, G♭dim+4.

Nearby chords (one more note): D9+6, GM11, Bm9+♯1, D9♯9+6, D9♭9+6, D7+6+♯4, D7+6+♯5.

Parallel chords (same structure, different root): Bdim6+4, C♭dim6+4, D♭dim6+4, C♯dim6+4, F♯dim6+4.

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