C 3
The C 3 chord consists of the C (Perfect unison) and E (Major third) notes.

How to play the C 3 chord
- Find C (Root) on the piano keyboard
- Add E (Major third) — 4 semitones above C
- Press all 2 notes simultaneously to sound the C 3 chord
The C 3 chord consists of the C (Perfect unison) and E (Major third) notes.
