The Ear Training Interval Solutions set contains 144 MP3 files.
The intervals are: unison, minor 2nd, Major 2nd, minor 3rd, Major 3rd, Perfect 4th, Tritone, Perfect 5th, minor 6th, Major 6th, minor 7th, and Major 7th.

The Ear Training Chord Solutions consists of:
3-note chords (60 MP3s), types are
Major, minor, diminished, augmented, suspended

4-note chords (60 MP3s), types are
Major 7, minor 7, diminished 7, m7b5, dominant 7