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:6/4
K:A
['A3 E3 C3/2 D/ E A,2 A', 'B G']  
X:1
L:1/4
M:6/4
K:A
|: A3 E3 | C3/2 D/ E A,2 A | D2 B E2 c | f d c B3 :: e | a3 e3 | c3/2 d/ e A2 f | G2 e F2 d | 
 E c A B G E | F A C B, B G | A3 A2 :|  