Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
Q:1/2=76
M:2/2
K:G
['G3 A', 'd g3 a gfed']  
X:1
L:1/8
Q:1/2=76
M:2/2
K:G
 D | G3 A BABG | c2 c2 c2 BA | G3 A BABc | d2 d2 d3 D | G3 A BABG | cBcd e3 d | efge fgaf | 
 g2 g2 g3 :: d | g3 a gfed | c2 c2 c3 e | a3 b agfe | d2 d2 d3 d | g3 a gfed | cBcd e3 d | 
 efge fgaf | g2 g2 g3 :|  