Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/8
Q:1/2=80
M:4/4
K:G
['Bdgf g2', 'babg a2 f2 gfge d2']  
X:1
L:1/8
Q:1/2=80
M:4/4
K:G
 (dc) | Bdgf g2 (dc) | Bdgf g2 (gf) | egc'b agfe | dfag fedc | Bdgf g2 (dc) | Bdgf g2 (gf) | 
 efge fgaf | g2 g2 g2 :: ga | babg a2 f2 | gfge d2 B2 | cdec BcdB | A2 a2 a2 (ga) | babg a2 f2 | 
 gfge d2 (gf) | efge fgaf | g2 g2 g2 :|  