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:1/2=100
M:2/4
K:A
['A3 c', '(ecBA) BA Bf (ecBA) c3 f (ecBA)']  
X:1
L:1/8
Q:1/2=100
M:2/4
K:A
 E |"_2 sharps in ms" A3 c | BABc | A3 c | e3 a | A3 c BABc | A(FED) | A3 :: (ecBA) | BA Bf | 
 (ecBA) | c3 f | (ecBA) | BG Bd | (AFFE) | A3 :|  