Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
M:2/2
K:G
['GBGB AcAc BcdB', 'Bg g2 dB B2']  
X:1
L:1/8
M:2/2
K:G
 uD2 | GBGB AcAc | BcdB G2 (AB) | cAcA BGBG | ABAF GFED | GBGB AcAc | BcdB c2 (Bd) | egfa gedc | 
 B2 G2 G2 :: Bg g2 dB B2 | Bg g2 dB B2 | eaaa a2 a2 | ABAF GFED | GBGB AcAc | BcdB c2 (Bd) | 
 egfa gedc | B2 G2 G2 :|  