Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/4
M:3/4
K:D
['G F']  
X:1
L:1/4
M:3/4
K:D
"D" D F G |"D" A3/2 B/ A |"A7" G F E |"D" F2 D :|"A" E E F |"A7" G3/2 A/ G |"D" F F G | 
"D" A3/2 B/ A |"A7" G F E |"D" (E2 D) |]  