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
Q:1/4=160
M:4/4
K:C
['', '.d.d .d.d', 'FA .c.c .c.c']  
X:1
L:1/8
Q:1/4=160
M:4/4
K:C
 A |: .c.A .d.c .f.c .e.B | .d.c .c.B c2 cA | .c.A .d.c .f.c .ed | e2 dc .dA .cA | e2 ed eA cA | 
 e2 ed eA cA | e2 d2 c2 _Bd |1 c2 cB c3 A :|2 B2 cB cF AF |:[K:F] .d.d .d.d .dA FA | 
 .d.d .d.d .dA FA | .d.d .d.d .dA FA | _B4- BC FA | .c.c .c.c .cC FA | .c.c .c.c .cC FA | 
 .c.c .c.c .c.B AG |1 A6 FA :|  