Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['D/D/D d2 DFAF', 'dfaf gfed']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 D/D/D d2 DFAF | GBAF E>DEF | D/D/D d2 DFAF | G>BAF D/D/D D2 :| dfaf gfed | cAeA fAeA | dfaf gfed | 
 c>def d/d/d dA | dfaf gfed | cAeA fAeA | dfeg f/g/a eg | fdec d/d/d d2 |]  