Fundamentals
Notes, intervals, notation and the staff.
Basics
How Musical Intervals Are Measured: Semitones, Names and Sizes
Learn how musical intervals are counted, named and measured in semitones, plus which intervals sound consonant and why their frequency ratios matter.
BasicsReading the Staff and Clefs: Lines, Spaces, Ledger Lines and Clef Signs
A clear guide to the five-line staff, the treble, bass, alto and tenor clefs, and ledger lines, with the note names you need to read music.