Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:2/2
K:Bb
['Bdfb agfb geca fcAc', 'eEGB Abag fbAc']  
X:1
L:1/8
M:2/2
K:Bb
 FE | D<FB,B A<cFA | Bdfb agfb | geca fcAc | (3Bdc (3BAG F2 E2 | (3DFD B,B (3AcA FA | Bdfb agfb | 
 geca fcAc | B2 d2 B2 :| FE | DFBF dBFD | EBGB eEGB | Abag fbAc | (3Bdc (3BAG F2 E2 | DFBF dBFD | 
 E2 GB eEGB | Abag fbAc | B2 d2 B2 FE | DFBF dBFD | EBGB eEGB | Abag fbAc | (3Bdc (3BAG F2 E2 | 
 (3DFB (3dBF (3DFB (3dBF | (3EGB (3eBG (3EGB (3eBG | (3ABA ag (3fgf (3edc | B2 d2 B2 |]  