Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:2/4
K:G
['dd Bd ed B2 B A3', 'ed B2 AA/A/ BA']  
X:1
L:1/8
M:2/4
K:G
|: dd Bd | ed B2 | B A3 | B A3 |: dd Bd | ed B2 | AA/A/ BA | G4 | GG/G/ Bd | g4 | ee/e/ ge | d4 | 
 dd B/B/d/d/ | ed B2 | AA/A/ BA | G4 :|  