BookatlasPiano Rabbit Hole: Improvisation Theory & Practice
5574 / 18210 · Workshop 39 — “Watermelon Man”: Blues-Funk Vocabulary, Dominant Vamps, Riffs as Harmony, and Making Repetition Feel Inevitable Instead of Boring← prev⊞ allnext →

39.4Why blues can live on dominant 7ths

A major triad would be:

F A C.

Adding E♭ gives:

♭7.

That creates a rougher, more open sound than Fmaj7.

The chord does not feel fully “resolved” in classical terms, which is exactly part of the blues aesthetic.