Space plays and stops
- Notes and intervals
- D#M3F##m3A#M3C##
D# Major 7, written D#maj7, is built from D#, F##, A# and C##: the root, major 3rd, 5th and major 7th.
Its 3rd and 7th, F## and C##, are its guide tones: they say what kind of chord it is, so voicings are built around them and the root is often left to the bass.
In the progressions here, D#maj7 is the IIImaj7 of the Coltrane Changes in B.