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⁺⁹, C2^+6+♯7, Adim^♭5+2, B♯2^+6+♯7, C2^+13+♯7, B♯2^+13+♯7.

Notes in this chord: A, B, C, D. 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⁺², Dm4⁺², Em4⁺², Fm4⁺², Gm4⁺², Bm4⁺², C♭m4⁺², D♭m4⁺², E♭m4⁺², F♭m4⁺², G♭m4⁺², A♭m4⁺², B♭m4⁺², C♯m4⁺², D♯m4⁺², E♯m4⁺², F♯m4⁺², G♯m4⁺², A♯m4⁺², B♯m4⁺².

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