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:6/8
K:F
['(3A,A,A, C (3CCC (3DEF E FGA', 'GFD C (3CCC C (3DEF']  
X:1
L:1/8
M:6/8
K:F
|: A, (3A,A,A, C (3CCC | (3DEF E FGA | B (3BBB A (3AAF | GFG AFCA, (3A,A,A, C (3CCC | (3DEF E FGA | 
 BAG AFc |1 GFE FCB, :|2 GFE FcB |: A (3AAA cA(B | B)AG GFD | C (3CCC C (3DEF | 
 FGG GFGA (3AAA cA(d | d)cA GFD | C (3CCC C (3DEF |1 GFE FcB :|2 GFE FCB, ||  