Music theory basics · updated 2026-08-16
INTERVAL
The distance between two pitches, counted in scale steps (a third, a fifth) or in semitones (4, 7).

SOURCES AND CITATIONS
Free, primary references for interval — standards bodies, manufacturers, government offices and university course material.
RELATED TERMS IN MUSIC THEORY BASICS
- Pitch
- Scale
- Key and key signature
- Chord and triad
- Chord progression
- Tempo and BPM
- Time signature
- Syncopation
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