Compose a piece by incorporating the set musical pattern in its alphabetical form along with the given melodic subject.
X:1
L:1/4
M:4/4
K:G
['D G', 'B3/2 A/ G']  
X:1
L:1/4
M:4/4
K:G
 D G D G | F E F E | D G D G | F G A2 | D G D G | F E F E | D2 B3/2 A/ | G F G2 :| B3/2 A/ G B | 
 c2 A2 | B3/2 A/ G B | A F D2 | B3/2 A/ G B | c2 A2 | D2 B3/2 A/ | G F G2 :|  