Space plays and stops
- Notes and intervals
- BbM3Dm3FM3Am3C
- Extends
- Bb Major 7
Bb Major 9, written Bbmaj9, is built from Bb, D, F, A and C: the root, major 3rd, 5th, major 7th and 9th.
Its 3rd and 7th, D and A, 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.