Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/4
K:G
['BG GA/B/', 'dB ec cd/e/ f2 de/f/ g>f ge']  
X:1
L:1/8
M:2/4
K:G
 g>f g>f | gd d2 | c/d/e dc | BG GA | BG GA/B/ | cA Ac | B/c/d cB |1 Ad ef :|2 A2 A2 |: BG GA/B/ | 
 cA dB | ec cd/e/ | f2 de/f/ | g>f ge | de/f/ gB | c/d/e d>c |1 BG GA :|2 BG G2 ||  