Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
Q:1/4=60
M:2/4
K:Gdor
['dc BB/B/']  
X:1
L:1/8
Q:1/4=60
M:2/4
K:Gdor
 dc BB/B/ | cc/c/ B/A/G | dc BB/B/ | cA G2 | GA B/B/B/B/ | Bc A2 | BA GG/G/ | A>A F/E/D | 
 GA BB/B/ | Bc A2 | BA/B/ GG/G/ | GF G2 |]  