Compose a piece featuring the specified motif and using an alphabet-based arrangement.
X:1
L:1/8
M:9/8
K:G
['ddd BGB', 'GBd gdB']  
X:1
L:1/8
M:9/8
K:G
 ddd BGB BGB | ddd BGB cBA | ddd BGB BGB | ccc AGA cBA :: GBd gdB gdB | GBd gdB cBA | GBd gdB gdB | 
 ccc AGA cBA :|  