Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
M:4/4
K:Bmix
['DB,B,C =D2 AD BDAD =dBAF', 'dAdf afef dBBc d2 ce dfec A2']  
X:1
L:1/8
M:4/4
K:Bmix
 B2 FE DB,B,C | =D2 AD BDAD | =dBAF E2 =DE | FB B2 Fedc | B3 E DB,B,C | =D2 AD BDAD | 
 =dBAF (3EFE =DE |1 FBBA Bedc :|2 FBBF B3 c ||[K:Bmin] d2 ce dfec | A2 EA fAeA | dAfA dAdf | 
 afef dBBc | d2 ce dfec | A2 EA fAeA | faef dBBe | ^dBB^A B3 c :| B4 ||  