Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/2
K:G
['GBdB efge', 'GBdB efge']  
X:1
L:1/8
M:2/2
K:G
 GBdB efge | dBAG AFED | GBdB efge | dBAB G2 G2 :| dfaf bgfe | fgaf ecBA | fgaf gabg | faAc d2 D2 | 
 GBdB efge | dbca BgAf | GBdB efge | dBAB G2 G2 ||  