Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:4/4
K:G
['G G']  
X:1
L:1/8
M:4/4
K:G
 B | G G B c de d c | B G G G G2 d | g g e g f d2 d | A A B ^c d2 z d | g g e g f d2 d | 
 g g e f g2 z B | F F B c de d =c | B G G G G3 z |]  