C♯add9
C♯ Add 9
1 3 5 9
Notes in C♯add9
C♯R
F3
A♭5
E♭9
The C♯add9 chord contains 4 notes: C♯, F, A♭, E♭
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | C♯ | Root |
| 3 | 4 | F | Major 3rd |
| 5 | 7 | A♭ | Perfect 5th |
| 9 | 2 | E♭ | Major 9th |
About C♯ Add 9 Chords
Add9 chords are major triads with an added 9th (the 2nd, played an octave up). Unlike a full 9th chord, add9 doesn't include the 7th, giving it a cleaner, more pop-friendly sound. It adds sparkle and width without jazz complexity.
Compatible Scales & Modes
These scales contain all the notes of C♯add9 and can be used for soloing, improvising, and writing melodies over this chord.
C♯ Ionian (Major Scale)
The 9th is simply the 2nd an octave up — major scale covers it naturally.
C♯ Lydian
Adds extra color with the ♯4 on top of the add9 voicing.