Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/8
M:2/4
K:Db
['(3FDE A,>E D>F, A,<A,']  
X:1
L:1/8
M:2/4
K:Db
 F/ | (3FDE A,>E | D>F, A,<A, | A,<A, A,>F | (3FDE A,>E | D>F, A,<A, | A,A,- A,>B, | 
 (3B,F,B, A,>B, ||[M:3/4] A,<A, A,3 B, ||[M:2/4] (3B,F,B, A,>B, ||[M:3/4] A,A, A,7/2 z/ |]  