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