E b5
The E b5 chord consists of the E (Perfect unison), G# (Major third) and A# (Diminished fifth) notes.

How to play the E b5 chord
- Find E (Root) on the piano keyboard
- Add G# (Major third) — 4 semitones above E
- Add A# (Diminished fifth) — 6 semitones above E
- Press all 3 notes simultaneously to sound the E b5 chord