C#
Diatonic Scale
C# / D♭ Major
The brightest, most stable scale — the foundation of Western tonal music.
Notes in C# Major
Db1
Eb2
F3
Gb4
Ab5
Bb6
C7
Db8
Chords in C# Major
7 diatonic chordsDegreeChordNotesQuality
IDbDb – F – Abmajor
iiEbmEb – Gb – Bbminor
iiiFmF – Ab – Cminor
IVGbGb – Bb – Dbmajor
VAbAb – C – Ebmajor
viBbmBb – Db – Fminor
viiC°C – Eb – Gbdiminished
Other Scales in C#
Natural MinorDb, Eb, E, Gb, Ab, A, BHarmonic MinorDb, Eb, E, Gb, Ab, A, CMelodic MinorDb, Eb, E, Gb, Ab, Bb, CDorianDb, Eb, E, Gb, Ab, Bb, BPhrygianDb, D, E, Gb, Ab, A, BLydianDb, Eb, F, G, Ab, Bb, CMixolydianDb, Eb, F, Gb, Ab, Bb, BLocrianDb, D, E, Gb, G, A, BMajor PentatonicDb, Eb, F, Ab, BbMinor PentatonicDb, E, Gb, Ab, BBluesDb, E, Gb, G, Ab, BWhole ToneDb, Eb, F, G, A, BDiminished (H-W)Db, D, E, F, G, Ab, Bb, BDiminished (W-H)Db, Eb, E, Gb, G, A, Bb, CPhrygian DominantDb, D, F, Gb, Ab, A, BHungarian MinorDb, Eb, E, G, Ab, A, CLydian DominantDb, Eb, F, G, Ab, Bb, B
Major in All 12 Keys
Practice by Ear
Chords in C# / Db Major
The C# major scale contains the notes Db, Eb, F, Gb, Ab, Bb, C. The brightest, most stable scale — the foundation of Western tonal music.
The diatonic chords in C# major are Db (I), Ebm (ii), Fm (iii), Gb (IV), Ab (V), Bbm (vi), C° (vii). These are the chords you can use when writing or improvising in this key — every note in each chord belongs to the C# major scale.
To develop your ear for the C# major sound, use the scale and chord trainers linked above. Being able to recognise these sounds by ear — not just read them from a chart — is what separates musicians who truly hear music from those who only read it.