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:6/8
K:G
['d2 B']  
X:1
L:1/8
M:6/8
K:G
 GAB g2 g | agf e2 g | ded d2 B | (d3 d2) B | B2 e e^de | B2 e e2 f | gfe f2 ^d | (e3 e2) | d | 
 ded g2 f | (e3 e2) e | efe a2 g | (f3 f)ga | b2 g a2 f | gfe d2 B | cde dgf | (g3 g2) | d | 
 ded g2 f | (e3 e2) e | efe a2 g | (f3 f)ga | b2 g a2 f | gfe d2 B | cde dgf | (g3 g2) |]  