Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/16
Q:1/4=135
M:2/4
K:D
['DEFG A2A2', 'c2BA B2AG']  
X:1
L:1/16
Q:1/4=135
M:2/4
K:D
 DEFG A2A2 | dcBc A4{A} | DEFG A2A2 | d4 ^A4 :| c2BA B2AG | A2AB G2AB | c2BA B2AG | A4 G4 :|  