Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/4
K:G
['D/D/ G>GGG GF F2 z2 AB cDDF']  
X:1
L:1/8
M:2/4
K:G
 D/D/ | G>GGG | GF F2 | z2 AB | cDDF | G2 z D/D/ | G>GGG | GF F2 | z2 AB | cDDF | G2 z G | GBdB | 
 BGG/E/E | cBAG | F/F/E D2 | z2 DC | B,DGB | d2 cA | BBBA | G2 z |]  