Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:6/8
K:C
['GBcedc g4 ce agegec d4 GB dGB']  
X:1
L:1/8
M:6/8
K:C
 GBcedc | g4 ce | agegec | d4 GB | dGB d2 B | g4 Bd | f2 d a2 g | e4 ^FG | edGedG | agecAF | 
 AccBgg | c3 c3 | e3 ecA | a3 fdB | ^G3 Gfe | A3 cBc | a2 gfed | a2 gedc | BddBaa | gde c3 |]  