Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:3/4
K:G
['D GFGB d2 c/B/A G2 z A/G/']  
X:1
L:1/8
M:3/4
K:G
 D | GFGB d2 | c/B/A G2 z A/G/ | FG A2 d2 | d^c d2 z B | cd e3 d | ce d3 c | BAGAcB | BA G2 z |]  