Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:D
['ADD/D/D ADFD ADD/D/D BAFA BEE/E/E BEGE defd', 'bafa bee/e/e bege defd g2 AB/c/ dcdf']  
X:1
L:1/8
M:4/4
K:D
 ADD/D/D ADFD | ADD/D/D BAFA | BEE/E/E BEGE | defd d2 AB/c/ | dcdf ecdB | AFDF A2 Bc | dBcA BGAF |1 
 EFGA BcdB :|2 EFGA B2 d2 |: add/d/d adfd | add/d/d bafa | bee/e/e bege | defd g2 AB/c/ | 
 dcdf eceB | AFDF A2 Bc | dBcA BGAF |1 EFGA B2 d2 :|2 EFGA BcdB ||  