Craft a music piece utilizing the assigned alphabetic notation and the supplied motif.
X:1
L:1/8
M:2/2
K:Bb
['F2 B2 (Bc) BFDF BcdB edcB Bdfg', 'AcAF B2 (Bc) BFDF BcdB edcB Bdfg', 'B2 (Bd) f2 (fg) fdfb g2 (ga)', '(de) f2 (fg) fdfb g2 (ga) gfga']  
X:1
L:1/8
M:2/2
K:Bb
 F2 | B2 (Bc) BFDF | BcdB edcB | Bdfg fdBd | edcB AcAF || B2 (Bc) BFDF | BcdB edcB | Bdfg fecd | 
 B2 B2 B2 :: (Bd) | f2 (fg) fdfb | g2 (ga) gfga | bagf edcB | ABcA F2 (de) || f2 (fg) fdfb | 
 g2 (ga) gfga | b2 (fd) ecAc | B2 B2 B2 :|  