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: Am4⁺², C2^+6+♯7, Adim^♭5+2, B♯2^+6+♯7, C2^+13+♯7, B♯2^+13+♯7.

Notes in this chord: A, C, D, B. Integer notation: {0, 2, 9, 11}.

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

Keys in which this chord fits with enharmonic spelling: B♯M, F♭m

Nearby chords (one less note): Am4, D6^-3, A2^+♯2, C2^+♯7.

Nearby chords (one more note): D7⁺⁶, F6^+♯4, G⁺²⁺⁴, Am⁺²⁺⁴, A4^+2+♯2, Adim⁺²⁺⁴, Am4^+2+♯1, A♭^{♭5+♯1+♯2}.

Parallel chords (same structure, different root): Cm4⁺⁹, Dm4⁺⁹, Em4⁺⁹, Fm4⁺⁹, Gm4⁺⁹, Bm4⁺⁹, C♭m4⁺⁹, D♭m4⁺⁹, E♭m4⁺⁹, F♭m4⁺⁹, G♭m4⁺⁹, A♭m4⁺⁹, B♭m4⁺⁹, C♯m4⁺⁹, D♯m4⁺⁹, E♯m4⁺⁹, F♯m4⁺⁹, G♯m4⁺⁹, A♯m4⁺⁹, B♯m4⁺⁹.

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