Chord · 9ths
Amaj9♯5 — A Major 9th ♯5
Amaj9♯5 is the A major 9th ♯5 chord. It is built on the root A with major 3rd (C♯), augmented 5th (E♯), major 7th (G♯) and major 9th (B) above it — the formula 1 3 ♯5 7 9, sounding the notes A C♯ E♯ G♯ B. On the piano it sits at A (octave 3) and above in the library's voicing; the same 5 notes in any octave are still Amaj9♯5.
- Root
- A
- Quality
- Major 9th ♯5
- Formula
- 1 3 ♯5 7 9
- Notes
- A C♯ E♯ G♯ B
On the keyboard
The notes of Amaj9♯5
| Degree | Note | Interval from the root | Pitch |
|---|---|---|---|
| 1 | A | root | A3 |
| 3 | C♯ | major 3rd | C♯4 |
| ♯5 | E♯ | augmented 5th | E♯4 |
| 7 | G♯ | major 7th | G♯4 |
| 9 | B | major 9th | B4 |
Other 9ths on A
Major 9th ♯5 chords on every root
Part of the chord reference. See also the scales and the keys.