Develop a musical piece using the given motif and adhere to the outlined musical structure.
X:1
L:1/8
M:2/4
K:G
['GBGB GB (d/B/)(A/G/) FAFA FA d/c/B/A/ GBGB', 'gf/e/ dc'  
X:1
L:1/8
M:2/4
K:G
 GBGB | GB (d/B/)(A/G/) | FAFA | FA d/c/B/A/ | GBGB | G/A/B/c/ dg | c/B/A/G/ F/G/A/B/ | G2 G2 :: 
 gf/e/ dc | Bc d2 | gf/e/ dc | Bg A2 | gf/e/ dc | BG c2 | BA/G/ F/G/A/B/ | G2 G2 :|  