Intervals
An interval is the distance between two notes, counted in half steps. Each distance has a name and a song that opens with it. Pick a home note, play every distance from it, and highlight the rows any scale or mode is built from.
The twelve intervals
Every distance from zero semitones to the full octave, each measured up from the same low C, with a song to hang it on. Sing the hook, and you've sung the interval. The rows wearing the major scale tag land on notes of C major; the plain rows fall between them. Tap a row to hear the low C, then the top note.
Home note · sets the key
How it plays
Highlight · the notes of C…
Top noteSemitonesSymbolInterval
Rough or smooth
Close intervals beat and clash; wider ones ring. The half step is the roughest sound in the scale, the fifth and octave the smoothest. Compare on your chosen root: