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:3/8=90
M:6/8
K:D
['A FAA dAA']  
X:1
L:1/8
Q:3/8=90
M:6/8
K:D
 A |"D" FAA dAA |"Bm" BAB"D" dAG | FAA Afe |"Bm" dBB B2 A |"D" FAA dAA |"Bm" BAB def | 
"Em" gfe"Bm" dfe | dBB B2 :: g |"Bm" fbb"D" faa |"Bm" fef"G" deg |"Bm" fbb"D" faa | 
"Bm" fed"Em" e2 g |"Bm" fbb"D" faa |"Bm" fef def |"Em" gfe"Bm" dfe | dBB"G" B2 :|  