Quote:
Also, for those chords that contain more than 3 notes, it would be great if the 3 essential notes could be identified.

It sounds to me like you are attempting think of everything as a form of triad. This all depends on inversions, the emphasis on 7th's etc relative to the music, and chord progressions, etc. One persons suggestion of the three 'essential' notes will likely not always agree with another's.

Quote:
Of course, sharp and flat chords are needed, not just major chords.

Hmmm. Does not compute crazy . You mean like an F Major chord and also an F# Major Chord? Or an A Major chord and an Ab Major chord? They are all Major chords. Perhaps you meant minor chords as well as major chords?


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