Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
['Aaag feac', 'ceAe cAec']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:A
|: Aaag feac | Aaac BBdB | Aaag feac | (3fga ec B2 A2 :: ceAe cAec | dfce BcdB | ceAe cAec | 
 dfec B2 A2 :|  