Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:6/8
K:D
['efg (B2 c)', '(f2 d)']  
X:1
L:1/8
M:6/8
K:D
 f2 d ABA |{Bc} (B2 A) [Dd]2 f | efg (B2 c) | (d2 e) (f2 g) | aba A>AA | [DB]2 A d2 (3fgf | 
 efg (B2 c) | e2 [Dd] [Dd]Ad || [Bg]3 [Bg]ag | (f2 d) Adf | e^de ede | fdB B/c/BA | [Bg]3 gag | 
 (f2 d) f>gf | e>^de e>f^g | a>ba (ag) ||  