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:A
['(3(efg) a>ec>e f>ec>B A>ce>a f>ec>A G>AB>c |1,3', 'a>gf>e f>ef>g f>ec>A G>AB>c |1,3 d>ef>e d>cB>A']  
X:1
L:1/8
M:2/2
K:A
 (3(efg) | a>ec>e f>ec>B | A>ce>a f>ec>A | G>AB>c |1,3 d>ef>e | d>cB>A B2 :|2,4 d>ef>g | 
 a2 A2 A2 :: (3(efg) | a>ga>b a>gf>e | f>ef>g f>ec>A | G>AB>c |1,3 d>ef>e | d>cB>A B2 :|2,4 
 d>ef>g | a2 a>g a2 :|  