Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:3/4
K:none
['B2 D2 D2', 'fB ce eG c2 EG GE GE']  
X:1
L:1/8
M:3/4
K:none
[K:C]"C" c6 | c6 | c2 d2 e2 |"G7" f6 | B6 | B6 | B2 d2 f2 |"C" e6 | c6 | c6 | c2 d2 e2 |"G7" f6 | 
 d4 c2 | B4 A2 | B2 e2 d2 |"C" c2 z2 z2 |:"C" c2 Ge dc |"G7" B2 D2 D2 | B2 D2 D2 |"C" c2 E2 E2 | 
 c2 Ge dc |"G7" B2 D2 D2 | B2 G2 B2 |"C" c2 z2 z2 :|"C" eg gc ec |"G7" Bf fB d2 | Bf fB fB | 
"C" ce eG c2 | EG GE GE |"G7" GB BG B2 | GB dB dB |"C" c2 c2 z2 |]  