Interval: the b2 of F
Gb
Interval: the 2 of F
G
Interval: the b3 of F
Ab
Interval: the 3 of F
A
Interval: the 4 of F
Bb
Interval: the b5 of F
B
Interval: the 5 of F
C
Interval: the b6 of F
Db
Interval: the 6 of F
D
Interval: the b7 of F
Eb
Interval: the 7 of F
E