Interval
Tritone
Six semitones — three whole tones. Bisects the octave exactly. Historically the 'devil in music' for its restless sound; the defining tension in dominant 7th chords.
Semitones
6
Frequency ratio
√2
Listening examples
- Maria opening from West Side Story
- C → F♯ on piano
Hear this interval from any tonic on any instrument: browse the intervals reference →
Adjacent intervals