Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:4/4
K:D
['(3EFG A>B A2', 'c>d e>f e2']  
X:1
L:1/8
M:4/4
K:D
 (3EFG A>B A2 f2 | (3EFG A>B A2 a2 | (3gag (3fgf (3efe d>d | (3cBG B>c B2 A2 | (3EFG A>B A2 f2 | 
 (3EFG A>B A2 a2 | (3gag (3fgf e>A B>c | d2 f2 d4 :: e2 e2 a2 a2 | c>d e>f e2 c2 | B2 B2 c2 c2 | 
 B>^A B>c B2 c>d | (3efe c>e a>f e>d | c>d e>f e2 c>d | e>a g>f e>d B>c | A2 E>F G2 E2 :|  