BookatlasPiano Rabbit Hole: Improvisation Theory & Practice
9819 / 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 →

81.29Level 10 — polychord notation concept

You may sometimes see one chord written over another, conceptually:

D major / C major

rather than ordinary slash-bass notation.

The notation means:

upper chord

over

lower chord.

Do not confuse this with:

D/C

where C is merely a bass note.