Space plays and stops
- Notes and intervals
- GbM3Bbm3DbM3Fm3Ab
- Extends
- Gb Major 7
Gb Major 9, written Gbmaj9, is built from Gb, Bb, Db, F and Ab: the root, major 3rd, 5th, major 7th and 9th.
Its 3rd and 7th, Bb and F, 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.