Develop a musical piece by utilizing the alphabet-based notation of the selected musical form and the provided melodic idea.
X:1
L:1/8
M:2/2
K:G
['BGBd g2 (g/a/b)', 'Bgdg Bgbg']  
X:1
L:1/8
M:2/2
K:G
 c | BGBd g2 (g/a/b) | BGBd cAAc | BGBd g2 (g/a/b) | AFDF (G2 G) :| c | Bgdg Bgbg | dgBg aAAc | 
 Bgdg Bgbg | AFDF (G2 G)c | Bgdg Bgbg | dgBg aAAc | bgaf gdec | AFDF (G2 G) ||  