Chord sequence

F7, Bb7, Eb7, B7, Dbmaj7

F7 B♭7 E♭7 B7 D♭maj7

120 BPM
Voicing family

Four-note rootless voicings in their two forms, with the 3rd or the 7th on the bottom, played over the root.

Customize each chord

Analysis

Heard in Bb major

Each chord's roman numeral and role in Bb major
Chord Numeral Role
F7 V7 Dominant
B♭7 V7/IV Secondary dominant of IV
E♭7 IV7 Blues dominant
B7 ? Outside the key (bII7)
D♭maj7 ♭IIImaj7 Borrowed from Bb minor

Scales to play