This jam track is in the key of D Phrygian with a Ska / Reggae Style.
- Chords: F/D /// Eb/D ///
- Tempo: 85BPM
- Time: 4/4 Straight Groove
D Phrygian Mode notes and formula:
- 1 b2 b3 4 5 b6 b7
- D Eb F G A Bb C
This jam track is a two chord vamp using the IV and V chords taken from the parallel major scale of the Phrygian mode (Bb major) but with D in the bass.
F/D contains the same notes as Dm7, so this chord could be viewed as such.
Eb/D contains the same notes as Ebmaj7 so this could be considered that way too.