Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:4/4
K:A
['c<c d>c', 'c<A A>B'  
X:1
L:1/8
M:4/4
K:A
 uA>uB | c<c d>c B<e e>c | A>G A>c B<G A>F | E>FE>D C>EA>B | c<c d>c B2 A>B | c<c d>c B<e e>c | 
 A>G A>c B<G A>F | E>FE>D C>EA>c | B<F G>E A2 |] A>B | c<A A>B c>ff>e | c<A A>B c<A A>c | 
 B>GG>A B<e e>c | B<G G>F E2 F>G | A<A c>B c<A A>B | c<c e>c d<B B>c | d>cd>f e>cA>c | 
 B<F G>E A2 |]  