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:3/2
K:F
['G A']  
X:1
L:1/4
M:3/2
K:F
 G | A d c3 A | G (E/D/) C D2 G | A =B d2 B B | A (G/=B/) A2 z G | A d c3 A | G (E/D/) C D2 E | 
 (F/G/) A G (E/C/) D D | D4 |]  