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:4/4
K:Amin
['B>A A2 (a>b) |{a} ^g4 z2 a2', '(dc)(BA) E4 z2 ^g2 (a=g)(fe) (fe)(d^c) (d3', 'c2 (3(edc)', '^g2 a3 =g{a} gf{g}fe (d3 e/f/) e3']  
X:1
L:1/8
M:4/4
K:Amin
"_Slow" A>B |{B} Tc2 B>A A2 (a>b) |{a} ^g4 z2 a2 | c2 (de) (fe)(dc) |{c} B4 z2 AB | 
 c2 B>A A2 (a>b) |{a} ^g4 z2 a2 | c2 (fe) (dc)(BA) | e6 :: B2 | c2 (e>d) (c>d)(e>f) | g4 z2 ^G2 | 
 A2 (f>e) (dc)(BA) | E4 z2 ^g2 | (a=g)(fe) (fe)(d^c) | (d3 e/f/) e4 |{d} c2 (BA) (ed)(cB) | A6 :: 
 A>B | (3(cBA) A2 (ec'b)a | Ta2 ^g2 z2 a>c | B2 c>e (3agf (3edc | Tc2 B2 z2 A>B | 
 (3(cBA) e2 ac'ba | Ta2 ^g2 z2 a2 | (ge)(fd) (ec)(BA) | e6 :: z B | c2 (3(edc) c2 (3(edc) | 
 e>f g2 z2 ^G2 | A2 (3(cBA) (ec)(BA) | TA2 ^G2 z2 ^g2 | a3 =g{a} gf{g}fe | (d3 e/f/) e3 d | 
 c2 B>A (fd)(e^G) |{G} A6 :|  