B♭7sus4 (B♭ dominant 7th sus4): B♭ E♭ F A♭. Formula 1 4 5 ♭7. A dominant 7th with the 4th in place of the 3rd: less pull than a plain 7th, common in modern jazz and soul.
Made of4
Contains & part of37
Inversions4
- B♭7sus4
Root position · B♭ E♭ F A♭
- B♭7sus4/E♭
1st inversion · E♭ F A♭ B♭
- B♭7sus4/F
2nd inversion · F A♭ B♭ E♭
- B♭7sus4/A♭
3rd inversion · A♭ B♭ E♭ F