Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:3/4
K:G
['G>G B>B d>d g2 d4 e>e d>d']  
X:1
L:1/8
M:3/4
K:G
 G>G B>B d>d | g2 d4 | e>e d>d c>c | B2 G4 | d2 B4 | c2 A4 | BddccB | B2 A4 ::  