Create a musical composition using the given alphabet-based notation and supplied motif.
X:1
L:1/8
M:2/2
K:Bb
['B2 (Bc) BFDF BcdB edcB Bdfg', '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) ecBc | B2 B2 B2 :|  