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: A♯4^+♯7, B♭4^+♯7, B♭4^+♭1, D5^+♯1+♯5, Asus4^♭5+♯1, Dsus2^♭2+♯5.

Notes in this chord: A, A♯, C♯♯, D♯. Integer notation: {2, 3, 9, 10}.

Keys in which this chord fits with enharmonic spelling: B♭M, A♯M, Gm

Nearby chords (one less note): B♭4, D5^+♯5, Dsus2^♭2, E♭sus4^♯4.

Nearby chords (one more note): B♭^+4+♭1, D^+♯1+♯5, A4^+♯1+♯4, E♭^+♯4+♭1, Adim^+4+♯1, B♭4^+♯1+♯7, Asus4^+♯1+♯4, A♭sus2^+♯1+♯4.

Parallel chords (same structure, different root): C4^+♭1, D4^+♭1, E4^+♭1, F4^+♭1, G4^+♭1, A4^+♭1, B4^+♭1, C♭4^+♭1, D♭4^+♭1, E♭4^+♭1, F♭4^+♭1, G♭4^+♭1, A♭4^+♭1, B♭4^+♭1, C♯4^+♭1, D♯4^+♭1, E♯4^+♭1, F♯4^+♭1, G♯4^+♭1, B♯4^+♭1.

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