In a stave

Two notes with one free space or line in between them form a third. Depending on where the third is located in a stave it can be a minor third (m3) or a major third (M3).

On a keyboard


When two notes are three semitones (or keys on a keyboard) apart, they form a minor third. When they are four semitones apart, they form a major third.


Brahm's Lullaby

Swing low, sweet chariot

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