Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:9/8
K:G
['Bdg Bdg', 'A ggg ggg dBG', 'BdB cec', 'BAB GBG AGF', 'Bcd dec', 'ggg gab']  
X:1
L:1/8
M:9/8
K:G
 c | Bdg Bdg dBG | Bdg Bdg f2 A | Bdg Bdg dBG | AFA cfe f2 A :| ggg ggg dBG | ggg gfe f2 A | 
 ggg ggg dBG | AFA cfe f2 A :| BdB cec dBG | BdB cec f2 A | BdB cec dBG | AFA cfe f2 A :| 
 BAB GBG AGF | BAB GBd gdc | BAB GBG AGF | FAc fge f2 A :| Bcd dec dBG | Bcd dec f2 A | 
 Bcd dec dBG | AGA cfe f2 A :| ggg gab dBG | ggg gab c'ba | ggg gab dBG | AGA cfe f2 A :|  