Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/16
M:2/4
K:G
['d2B2 GBcd e2c2', 'BdcB cedc dfed']  
X:1
L:1/16
M:2/4
K:G
 Bc | d2B2 GBcd | e2c2 A2ce | d2f2 e2>f2 | g2d2 B2d^c | d2B2 GBcd | e2c2 A2>e2 | d2f2 edef | 
 g2bag2 :| c2 | BdcB cedc | dfed gdBG | ABcd ed^cd | fedc c2B2 | BdcB cedc | dfed gdBd | 
 ABcd ed^cd | edef g2 :|  