Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:2/4
K:A
['c B2 A3/2 B/ a']  
X:1
L:1/8
M:2/4
K:A
 e e/ e/ a f | a c B2 | A3/2 B/ a c | A c B2 | A3/2 B/ a f | e f e e | B e B B | A F E2 | 
 B3/2 B/ B f | e3/2 e/ B e | F A B3/2 c/ | A F E2 |]  