Sevenths
symbols, sound and when to use them
Adding the seventh turns a triad into a chord with function and colour: the dominant (7) pulls toward resolution, maj7 sounds smooth and sophisticated, and m7 is the backbone of jazz and soul. It’s the central family of modern harmony.
Symbols in this family · 8 qualities
Every symbol opens that chord’s own page: what it is, how it sounds, when to use it and its diagram on all four instruments.