Space plays and stops
- Notes and intervals
- EbM3GM3B2Db
- Extends
- Eb Dominant 7
Eb Augmented 7, written Eb7#5, is built from Eb, G, B and Db: the root, major 3rd, sharp 5th and minor 7th.
Its 3rd and 7th, G and Db, 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. A7, a tritone away, has the same two notes the other way up, so it can stand in for Eb7#5 as its tritone substitute.