Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/4
M:4/4
K:G
['c d']  
X:1
L:1/4
M:4/4
K:G
 d | d3/2 d/ d =f | c3/2 c/ c d | c c _B3/2 c/ | A2 z d | d3/2 d/ d =f | c3/2 c/ c d | 
 c c _B3/2 c/ | A2 z A | _B B c c | d2 d =f | _e d c3/2 c/ | _B2 z A | _B c d B | c2 c d | 
 _B c A3/2 A/ | G3 |]  