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
Unison
View all intervalsterms →Two or more voices or instruments sounding the same pitch simultaneously or playing the same melody.
Whole toneAn interval spanning two semitones, equivalent to a major second.
Minor ThirdAn interval spanning three semitones, often described as having a dark, melancholic, or tender quality.
AugmentedAn interval that has been widened by one semitone beyond its major or perfect form.
Minor SecondAn interval spanning one semitone, the smallest step in standard Western music.
Synonyms
Compare with similar terms
v1 · 09/04/2026Browse all terms →