Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:2/2
K:D
['f2 Ba', 'eAce fBdB fBde']  
X:1
L:1/8
M:2/2
K:D
 f2 Bd fBde | f2 Ba eAcf | f2 Ba fBde | fgaf eAce :: fBdB fBde | fBdB eAce | fBdB fBde | 
 f2 gaf eAce :|  