North Coast Synthesis Ltd.

Choose audio sample set:
MSK 007 Leapfrog VCF (patch; see in online store)
MSK 009 Coiler VCF (patch; see in online store)

Equivalent chord symbols: A7^+♭1, C♯m6^+♯4, D♭m6^+♯4, C♯dim6^+♯5, D♭dim6^+♯5, D♭m^+♯4+♯5.

Notes in this chord: A, C♯, E, G, G♯. Integer notation: {1, 4, 7, 8, 9}.

Nearby chords (one less note): A7, A^+♭1, E4^+♯2, D♭m^+♯4, Gsus2^♭5+♯1.

Nearby chords (one more note): A9^+♯7, A7^+4+♯7, A9^♭9+♯7, G♭m9^+♯1, C6^+♯1+♯5, E♭11^♭5♭9, D♭^{+♯2+♯4+♯5}.

Parallel chords (same structure, different root): C7^+♯7, D7^+♯7, E7^+♯7, F7^+♯7, G7^+♯7, B7^+♯7, C♭7^+♯7, D♭7^+♯7, E♭7^+♯7, F♭7^+♯7, G♭7^+♯7, A♭7^+♯7, B♭7^+♯7, C♯7^+♯7, D♯7^+♯7, E♯7^+♯7, F♯7^+♯7, G♯7^+♯7, A♯7^+♯7, B♯7^+♯7.

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