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
Q:3/8=100
M:6/8
K:D
['fdB A>BA AdF', 'D2 a afa afa bgb bgb aba', 'c2 c cag f2 f fga efe']  
X:1
L:1/8
Q:3/8=100
M:6/8
K:D
 A | AFG Aaf | ede fdB | A>BA AdF | FEE E2 A | AFG A"^?"af | e>de fdB | A>BA AdF | DDD D2 :: a | 
 afa afa | bgb bgb | aba agf | efe efg | a3 f3 | ede fdB | ABA AdF | DDD D2 ::[K:A] ed | c2 c cag | 
 f2 f fga | efe edc | cBB Bed | c2 c cag | f2 f fga | efe dcB |1 BAA A :|2 BAAS A2 |]  