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:F
['A G']  
X:1
L:1/4
M:4/4
K:F
 F2 | A G A B | c2 A d | c B A G | A2 z c | d d e f | d2 c A | G F F E | F2 |]  