Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
['(dgfg) edcB', 'e2 e2']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
"^Key D in MS" (d3 c e)dcB | (dgfg) edcB | AGBG AGBG | DGBd cBAG | d3 e edcB | (dgfg) edcB | 
"_Here,have this spare bar!" (dgfg) edcB | (gfgd) ecAF | G2 G2 G2 z2 :: d3 e edcB | e2 e2 e2 z2 | 
 c3 d cAFA | dgfa agfe | dBdg eceg | fdfa gfgd | egfg ecAF | G2 G2 G2 z2 :|  