Interval Test Answers:
1 - Perfect 5th
2 - Diminished 7th
3 - Minor 7th
4 - Minor 2nd
5 - Augmented 4th
6 - Major 3rd
7 - Minor 3rd
8 - Perfect Octave
9 - Augmented 2nd
10 - Augmented 4th
11 - Perfect 5th
12 - Minor 2nd