E major/C
The E major chord consists of the E (Perfect unison), G# (Major third) and B (Perfect fifth) notes, with C as the bass note.

How to play the E major/C chord
- Play C as the lowest bass note in the left hand
- Find E (Root) on the piano keyboard
- Add G# (Major third) — 4 semitones above E
- Add B (Perfect fifth) — 7 semitones above E
- Press all 4 notes simultaneously to sound the E major/C chord