Music theory basics · updated 2026-08-16
PITCH
How high or low a note sounds, set by the frequency of the vibration behind it. Concert A above middle C is standardised at 440 Hz.

SOURCES AND CITATIONS
Free, primary references for pitch — standards bodies, manufacturers, government offices and university course material.
RELATED TERMS IN MUSIC THEORY BASICS
- Scale
- Key and key signature
- Chord and triad
- Chord progression
- Tempo and BPM
- Time signature
- Syncopation
- Harmony vs melody
Back to the full music glossary or read our latest articles.