Intervals

Front 1

Unison

Back 1

0

Front 2

Minor 2nd

Back 2

1

Front 3

Major 2nd

Back 3

2

Front 4

Minor 3rd

Back 4

3

Front 5

Major 3rd

Back 5

4

Front 6

Perfect 4th

Back 6

5

Front 7

Augmented 4th

Back 7

6

Front 8

Diminished 5th

Back 8

6

Front 9

Perfect 5th

Back 9

7

Front 10

Minor 6th

Back 10

8

Front 11

Major 6th

Back 11

9

Front 12

Minor 7th

Back 12

10

Front 13

Major 7th

Back 13

11

Front 14

Octave

Back 14

12