Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
Q:1/4=120
M:3/4
K:C
['C |[K:G] ed .B>c dBAG F>G ABcA', 'defg a>A ABcA B>c defg gG']  
X:1
L:1/8
Q:1/4=120
M:3/4
K:C
 C |[K:G] ed .B>c dBAG | F>G ABcA | B>c dBAG | DGGA BG :| B>c defg | a>A ABcA | B>c defg | 
 gG GABG :|  