BookatlasPiano Rabbit Hole: Improvisation Theory & Practice
9826 / 18210 · Workshop 81 — Polychords and Bitonal Hearing: Two Harmonic Worlds at Once, Upper Structure vs. True Polychord, Controlled Clashes, and Making “Wrong” Chords Sound Intentional← prev⊞ allnext →

81.36Polychordal pedal

We normally think of pedal as one bass note.

But you can sustain:

an entire upper triad

while lower harmony moves.

This is a harmonic pedal layer.