Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:4/4
K:Gdor
['DGBc defg', 'a bg g2 gd d2 dc c2']  
X:1
L:1/8
M:4/4
K:Gdor
 G3 d BGdG | DGBc defg | fdcd A3 f | dfcA BGAF | DGBG dGBG | DGBc defg | afcA fdcA |1 dfcA BGGF :|2 
 dfcA BG G2 |: b2 gf g2 (b2 | b)g gf g3 a | bg g2 gd d2 | dc c2 cBAB | Gdgf gfdB | Gdgf g3 a | 
 bgaf gfdc |1 dfcA BG G2 :|2 dfcA BGAF ||  