Question 1

What notes are in C#m?

Accepted Answer

C#m is C# – E – G#. The third is minor — one semitone lower than in a major chord — which is where the darker colour comes from.

Question 2

Which keys does C#m belong to?

Accepted Answer

Every note of C#m fits the scale of A (iii), E (vi), B (ii). The numeral says which degree the chord sits on, so the same chord does a different job in each of those keys — a I feels like home, a V pulls back towards it.

Question 3

How is C#m used in a song?

Accepted Answer

One common place is E, in the progression I – V – vi – IV — E – B – C#m – A. Play those four in a loop and the role of C#m becomes obvious: you can hear where it wants to go next.

Question 4

How many inversions does C#m have?

Accepted Answer

2, plus root position. An inversion moves the lowest note up an octave, which keeps the chord the same but changes which note is in the bass — the usual reason is to get from one chord to the next without moving your hand far.

C#m piano chord — the keys, the inversions, the theory

C#m

Inversions of C#m

Keys that contain C#m

Questions