Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/4
M:3/4
K:G
['G B', 'd e']  
X:1
L:1/4
M:3/4
K:G
 D G B | c2 A | G c e | e3 | D G B | c2 A/F/ | A G B | D3 | D G B | c2 A/F/ | G c e | d2 e | 
 d c B | A2 B | c E A | G3 :: d e d | d e f | g f e | d2 B/c/ | d e d | g f e | d2 z | D G B | 
 c2 A/F/ | A c e | d2 e | d c B | A2 B | c E A | G3 :|  