Chord sequence
Em7♭5 A7 Dm7 D♭7 Cmaj7
In every key
Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.
Heard in C major
Chords 1 to 3
Em7b5 A7 Dm7
Chords 3 to 5
Dm7 Db7 Cmaj7
Over Em7b5 · iiø7/ii
Mode 7 of Major
Over A7 · V7/ii
Mode 5 of Melodic Minor
Over Dm7 · ii7
Mode 2 of Major
Over Db7 · subV7
Mode 4 of Melodic Minor
Over Cmaj7 · Imaj7
The major scale and its modes are the most commonly used scales in western music.