
Learn upper-structure quartal (cordal) voicings applied to a backdoor progression and how to place them over minor 7, dominant 7, and major 7 chords.
This lesson demonstrates how to build and use three-note upper-structure cordal (quartal) voicings across a backdoor progression (Fmin7–Bb7–Cmaj7), including inversions and rootless placement. You’ll see specific upper structures: C47 over Fm7 for added 11th tension, D47 over Bb7 for 9/13 tensions, and E47 over Cmaj7 for the 3rd/6th color. The video also includes a complete exercise applying these cordal voicings in all keys so you can practice and internalize the sounds and inversions.
