Interval
Perfect fourth
A perfect fourth is 5 half steps: from C up to F.
- Half steps
- 5
- Symbol
- P4
- Sound
- Perfect consonance: open and stable
Play it yourself
Tap any key, then the key 5 half steps higher.
Tap a first note.
Hear it in a song
You can hear a perfect fourth in Here Comes the Bride. Humming that tune is the quickest way to recognise the interval by ear.
A perfect fourth from every note
The letter names follow the interval's number, so a third always skips one letter, even when a sharp or flat is needed.
- C – F
- C♯ – F♯
- D – G
- E♭ – A♭
- E – A
- F – B♭
- F♯ – B
- G – C
- A♭ – D♭
- A – D
- B♭ – E♭
- B – E