Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:D
['', 'c<A AG', 'dged =c3 e gedB']  
X:1
L:1/8
M:4/4
K:D
 cd || c<A AG EAAB | cBA^g agae | c<A AG EAA=c | (3B=cB GB dged :| =c3 e gedB | =cBAb aged | 
 =c3 d efge | dBGB dged | =c3 e gedB | =cBAg abga | (3bag af gage | dB G2 (3fga ed ||  