The App has four main features, which play musical elements, and the user is given the opportunity to identify what is being played:
1. To identify notes – Random notes are played individually.
2. To identify intervals – 2 Notes are played sequentially.
3. To identify scales – A set of notes are played sequentially, ascending and descending.
4. To identify chords – 3 to 5 notes are played simultaneously.
This is a free version of the app with limited features.