The Harmony of Selection: Chord-Scale Theory in Jazz Chord-Scale Theory (CST) is a pillar of modern jazz education, particularly championed by the Berklee College of Music . It provides a systematic method for improvisers and composers to navigate complex harmonies by treating chords and scales as two sides of the same coin. The Core Concept: Chords as Scales
Rearranging these notes linearly results in the .
A chord extended to a 13th contains the notes D-F-A-C-E-G-B.
The theory matches chord types with specific modes to create varied harmonic "colors": chord scale theory and jazz harmony