Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
M:6/8
K:G
['B3 cBc d3 d2', 'g2 d B2 g f2 d']  
X:1
L:1/8
M:6/8
K:G
 B3 cBc | d3 d2 e | dBG dBG | A3 AGA | B3 cBc | d3 d2 g | fed cBA | G3 G3 :| g2 d B2 g | f2 d c3 | 
 ded c2 A | ded B3 | g2 d B2 g | f2 d c2 B | ABc def | g3 g3 :|  