Compose a piece of music utilizing the given alphabet sequence and motif.
X:1
L:1/4
M:4/4
K:F
['A G']  
X:1
L:1/4
M:4/4
K:F
 F/G/ | A A A/G/ G | A G F2 | G B A G | F E D E | F E D3/2 A/ | A2 G/A/ B | A2 z |]  