Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:4/4
K:Bmin
['f3 g fBde', 'e3 f eBde']  
X:1
L:1/8
M:4/4
K:Bmin
|: f3 g fBde | fBeg fBde | f3 g fBde | fB d2 ABdA | f3 g fBde | faeg fBeB | d2 ed efdB | 
 ABde fagf :: e3 f eBde | e3 d egfe | deed eBde | edBe fgfd | e3 f eBde | fgaf efde | f3 d efdB | 
 ABde fagf :|  