Chord sequence
D♯m7♭5 G♯7alt Em7 A7 Bmaj7
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 B major
Chords 1 to 2
D#m7b5 G#7alt
Chords 3 to 5
Em7 A7 Bmaj7
Over D#m7b5 · iiiø7
Mode 7 of Major
Over G#7alt · V7alt/ii
Mode 7 of Melodic Minor
Over Em7 · iv7
Mode 2 of Major
Over A7 · ♭VII7
Mode 4 of Melodic Minor
Over Bmaj7 · Imaj7
The major scale and its modes are the most commonly used scales in western music.