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
['B2 A AGA BGG G2', 'def g2 e fg/a/f g2']  
X:1
L:1/8
M:6/8
K:G
 B2 A AGA | BGG G2 A | BAA ABd | edge dB | B2 A AGA | BGG G2 E | DEF GAB | dge dBA :: def g2 e | 
 fg/a/f g2 B | def g2 e | fg/a/f g2 a | Bbb aaa | gfg edB | geB ABd | edge dB :|  