Chord sequence

Dm7, Db7, Cmaj7

Dm7 D♭7 Cmaj7

Tempo 120 BPM

Rootless Shells Guide tones Rooted shells Rooted Drop 2

Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.

Customize each chord

Dm7
Db7
Cmaj7

Analysis

Heard in C major

Each chord's roman numeral and role in C major
Chord	Numeral	Role
Dm7	ii7	Subdominant
D♭7	subV7	Tritone substitute for V7
Cmaj7	Imaj7	Tonic

Progressions in these changes

All the chords

Tritone Sub ii-V-I Progression in C

The ii-V-I with a tritone substitute: bII7 in place of V7, so the bass falls by half steps from ii to I.

Scales to play