Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:Amin
['A2 AG']  
X:1
L:1/8
M:4/4
K:Amin
 cd | e3 e dB AG | A2 AG A2 cd | e2 g2 ed e2- | e2 cd e3 e | d3 B A2 AG | E2 cd e e3 | d B3 A2 AG | 
 A6 cc | c3 A GE G2 | A4 cd e2 | g2 e2 e4 | e2 cd e e3 | de/d/ cd e2 d2- | d2 BG A4 |]  