Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['A d2 fd BAFB AD (3FED FAAB', 'ABdf e2']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 A | d2 fd BAFB | AD (3FED FAAB | defd BAFB |1 ABdf eBB :|2 ABdf e2 d |: e | faag fd d2 | 
 gfga bgeg | faag fedB |1 ABdf e2 d :|2 ABdf e2 d2- | d8 |]  