Voice Coach
Press New interval (or Space) to hear two notes.
Spectrum of the played notes: note 1 pale, note 2 solid (one curve when played together). Frequencies and the brightness readout are revealed after you answer.

Song references

The opening of a familiar tune for each interval, starting on the current interval's first note, followed by the interval's two notes on their own. Find searches YouTube; Add video takes a YouTube link (with a start time if you like) to play here in a docked player.

Session