Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
M:4/4
K:G
['B2 dB', 'G2 z2 gfge edcB efge edcB c2']  
X:1
L:1/8
M:4/4
K:G
 D2 | G2 BG A2 cA | B2 dB G3 B | c2 ec B2 dB | A2 BG GFED | G2 BG A2 cA | B2 dB c2 ed | 
 cBAG D2 ga | g2 dB G2 :: z2 | gfge edcB | efge edcB | c2 ac B2 gB | A2 BG GFED | G2 BG A2 cA | 
 B2 dB c2 ed | cBAG D2 fa | g2 dB G2 :|  