1. Press New interval (or Space). A note is played, and the card shows the interval to sing from it.
2. Sing the target note, then tap Target note to check yourself.
3. Press New interval again: the next interval starts from the note you just sang.

Tips (all in Settings) · Pick the intervals to practise in What to practise. · Set the Register to match your voice, to the semitone. · Uncheck Show target note for a harder challenge. · Once you are at ease, try Autoplay: questions come by themselves, so you can practise hands-free.

Reverse exercise: Intervallic Dictation