Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
Q:1/4=120
M:2/4
K:C
['G ccBd cA GE ccBc d3 d', 'c AcGc AcGc B(B/c/) de'  
X:1
L:1/8
Q:1/4=120
M:2/4
K:C
 G | ccBd | cA GE | ccBc | d3 d | edcB | A (.d2 .c) | BGA^F | G3 |] c | AcGc | AcGc | B(B/c/) de | 
 d3 c | AcGc | AcGc | B(B/c/) de | c3 |]  