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 GGGG BA G2 B2 dB AGAD']  
X:1
L:1/8
M:2/4
K:G
 D | GGGG | BA G2 | B2 dB | AGAD | cccA | BAGG | ADDD | dddd/e/ | d2 cd | BGAD | G2 z |]  