Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
['', 'e2 A(c/d/)', 'cA (c/d/e)']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
 f"^$" |: e2 A(c/d/) ec(A<a) | e2 AB/c/ dB(=G<B) | e2 A(c/d/) eA(c<A) | BE B(c/d/) dB(=G<B) :: 
 cA (c/d/e) (c<A)A>B | cA (c/d/e) (d<B)=GB | cA (c/d/e) (c<A)(c<A) | BE B(c/d/) dB(=G<B) :|  