Amaj9
Major 9 · A – C♯ – E – G♯ – B
- AR
- C♯3
- E5
- G♯7
- B9
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the Amaj9 chord
The Amaj9 chord (Major 9) is built from A (the root), C♯ (a major third), E (a perfect fifth), G♯ (a major seventh) and B (a ninth). Major-ninth chords are especially lush and open, a favorite in soul, neo-soul and jazz.