Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:4/4
K:D
['B2 AF DFAF', 'd2 fd']  
X:1
L:1/8
M:4/4
K:D
 DEFA B2 AF | DFAF E2 FE | DEFA BAFA | dfec dBAF | D3 A B2 AF | DFAF E2 FE | DEFA BAFA | 
 Bdec (d2 d2) | D3 A B2 AF | DFAF EDB,C | D2 DA BAFA | dfec dBAF | DEFA B2 AF | DFAF E2 FE | 
 DEFA BAFA | Bdec d2 (3ABc || d2 fd Adfd | d2 fd B2 AB | d2 fd Adfg | afed B2 AB | d2 fd Adfd | 
 defd edef | g2 ge dB A2 | fgfe dBAB | d2 fd Adfd | d2 fd B2 AB | d2 fd Adfg | afed B2 AB | 
 d2 fd Adfd | defd edef | gfec dcBA | Bdec dBAF ||  