Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/16
M:2/4
K:Ab
['f3/2 f/']  
X:1
L:1/16
M:2/4
K:Ab
 f3/2 f/ f c f'2 c' f' | f3/2 f/ e c B A2 B | c2 b2 a b c' e' | f3 c f4 | f3/2 f/ f c f'2 c' f' | 
 f3/2 f/ e c B A2 B | c2 b2 a2 b c' | f8 |]  