Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/16
M:2/4
K:G
['G2GB d2g2 .e2.c2.c2 dc B2GB', ".a2.g2.g2 bc' d'c'ba b2ba g2ge d2BA G2GB"]  
X:1
L:1/16
M:2/4
K:G
 G2GB d2g2 | .e2.c2.c2 dc | B2GB d2gb | .a2.g2.g2 :: bc' | d'c'ba b2ba | g2ge d2BA | G2GB d2gb | 
 .a2.g2.g2 :|  