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:1/8=320
M:6/8
K:D
['D DFA AFA BGB', 'g fdf fdf']  
X:1
L:1/8
Q:1/8=320
M:6/8
K:D
 D | DFA AFA | BGB A2 B | =cEE EFG | AFD D2 D | DFA AFA | BGB AFA | dcd ecA | d3 d2 :| g | 
 fdf fdf | ecA A2 g | fdf fdf | g3 e2 g | fdf fdf | ecA AGA | Bcd ecA | d3 d2 :|  