B♭sus4
Sus4 · B♭ – E♭ – F
- B♭R
- E♭4
- F5
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the B♭sus4 chord
The B♭sus4 chord (Sus4) is built from B♭ (the root), E♭ (a perfect fourth) and F (a perfect fifth). Suspended-fourth chords swap the third for a fourth, creating tension that wants to fall back to the major.