Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:3/4
K:D
['d2 f2 B2 g3']  
X:1
L:1/8
M:3/4
K:D
 d2 f2 B2 | g3 .e(dc) | A4 (3ABc | d2 f2 B2 | g3 edc | d4 (3ABc | d2 f2 B2 | g3 .e(dc) | A4 (3ABc | 
 defgaf | bafgec | d4 (3ABc :|  