Construct a musical piece using the designated motif and sticking to the alphabetical form presented.
X:1
L:1/4
Q:1/8=240
M:3/2
K:G
['B A', 'B3/2 c/ d g']  
X:1
L:1/4
Q:1/8=240
M:3/2
K:G
 B3/2 c/ d B A G | F A2 c B A | B3/2 c/ d B A G | D G2 B A G :| B3/2 c/ d g g2 | a A2 c B A | 
 B3/2 c/ d g f2 | g G2 B A G :|  