Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/4
M:3/4
K:G
['G B c2']  
X:1
L:1/4
M:3/4
K:G
 d d G | B c2 | B2 G | F A2 | d d G | B c2 | B2 G | F D2 | A A G | B c2 | d G A | F D2 | z A G | 
 B c2 | B G A | F D2 |]  