Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:2/4
K:G
['ed/c/ Bg d/e/d/c/', 'g2 de/f/ gd BG']  
X:1
L:1/8
M:2/4
K:G
 D | G>A BA/G/ | c>d ed/c/ | Bg d/e/d/c/ | BA AD | G>A BA/G/ | c/B/c/d/ ed/c/ | Bg d/e/d/c/ | 
 BG G :: z | g2 de/f/ | gd BG | g2 d/e/d/c/ | BA A2 | g2 de/f/ | gd BG | ce A>c | BG G :|  