What are the chords in C♯ major?

The chords on the seven degrees are C♯, D♯m, E♯m, F♯, G♯, A♯m, B♯dim.

What is the relative key of C♯ major?

It is A♯ minor: the two keys share the same notes and the same key signature.

C♯ major has 7 sharps (F♯, C♯, G♯, D♯, A♯, E♯, B♯) in its key signature. Its scale is C♯, D♯, E♯, F♯, G♯, A♯, B♯ and its relative key is A♯ minor.

PatternW – W – H – W – W – W – H(W = whole step, H = half step)

Note names

Degree	Note	Name	Interval from the tonic
1	C♯	Tonic	Unison
2	D♯	Supertonic	Major second
3	E♯	Mediant	Major third
4	F♯	Subdominant	Perfect fourth
5	G♯	Dominant	Perfect fifth
6	A♯	Submediant	Major sixth
7	B♯	Leading tone	Major seventh

Starting from each degree of the scale, with the same notes, you get seven modes.

How many sharps or flats does C♯ major have?: C♯ major has 7 sharps (F♯, C♯, G♯, D♯, A♯, E♯, B♯).
What are the chords in C♯ major?: The chords on the seven degrees are C♯, D♯m, E♯m, F♯, G♯, A♯m, B♯dim.
What is the relative key of C♯ major?: It is A♯ minor: the two keys share the same notes and the same key signature.

Texts and tools by Stefano Corradi, professional musician and developer. Last updated: October 8, 2026.

With GEN you generate ever-new exercises on the scales you are studying.