Perfect Fifth
An interval of seven semitones
Category
intervals
Pronunciation
PER-fikt FIFTH
Origin
Latin
Length
78 words · 1 min read
About Perfect Fifth
The perfect fifth spans seven semitones and has a frequency ratio of 3:2. After the octave, it is the most consonant interval and forms the backbone of Western harmony.
More intervals terms
Third
View all intervalsterms →An interval spanning three diatonic scale degrees
Major SixthAn interval spanning nine semitones, often described as warm, open, and gently uplifting.
Compound IntervalAn interval wider than an octave, such as a ninth, tenth, or eleventh.
FifthThe interval spanning five scale degrees, most commonly the perfect fifth.
Perfect FourthAn interval spanning five semitones, historically treated as both consonant and dissonant depending on context.
Synonyms
Compare with similar terms
v1 · 09/04/2026Browse all terms →