Chord sequence
C♯m7 F♯7 Bmaj7 G♯7
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 3
C#m7 F#7 Bmaj7
Over C#m7 · ii7
Mode 2 of Major
Over F#7 · V7
Mode 5 of Major
Over Bmaj7 · Imaj7
The major scale and its modes are the most commonly used scales in western music.
Over G#7 · V7/ii
Mode 5 of Melodic Minor