Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:6/8
K:D
['A>BA AGF EDE FGA', 'fgf dAa ece gec ded BGe', 'd3 FDD GDD ADD BDD cDD def']  
X:1
L:1/8
M:6/8
K:D
|: A>BA AGF | EDE FGA | Bcd efg | fda ecA | A>BA AGF | EDE FGA | BB/c/d fdA | ecA d3 :: fgf dAa | 
 ece gec | ded BGe | cAc ecA | fgf dAa | ece gec | ded BGe | cec d3 :: FDD GDD | ADD BDD | 
 cDD def | gag ecA |1 FDD GEE | AFF BGG | cAA dd/e/f | gec d3 :|2 Fdd Gee | Aff Bgg | caa def | 
 gec d3 ||  