Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
Q:1/4=140
M:4/4
K:C
['gf/e/ dc', 'c e2 d c g2']  
X:1
L:1/8
Q:1/4=140
M:4/4
K:C
 gf/e/ dc !wedge!d(BAG) | c/d/e d/e/f Te2 d2 | gf/e/ dc !wedge!d(BAG) | c/d/e/f/ gf Ted/e/ c2 |: 
 c e2 d c g2 B | cB/c/ Ad TBA/B/ G2 | c e2 d c g2 f | ed/e/ f/e/d/e/ c2 c2 |]  