C♯maj9
C♯ Major 9th
1 3 5 7 9
Notes in C♯maj9
C♯R
F3
A♭5
C7
E♭9
The C♯maj9 chord contains 5 notes: C♯, F, A♭, C, E♭
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | C♯ | Root |
| 3 | 4 | F | Major 3rd |
| 5 | 7 | A♭ | Perfect 5th |
| 7 | 11 | C | Major 7th |
| 9 | 2 | E♭ | Major 9th |
About C♯ Major 9th Chords
Major 9th chords combine maj7 with a 9th for a lush, sophisticated sound. They appear frequently in jazz ballads, bossa nova, and contemporary R&B. Steely Dan built entire careers on maj9 voicings.
Compatible Scales & Modes
These scales contain all the notes of C♯maj9 and can be used for soloing, improvising, and writing melodies over this chord.
C♯ Lydian
Beautiful over maj9 chords — the ♯4 adds sophistication without clashing.
C♯ Ionian
Works perfectly. The 9th is a natural scale tone.