Develop a musical piece by utilizing the alphabet-based notation of the selected musical form and the provided melodic idea.
X:1
L:1/16
Q:1/4=58
M:2/4
K:Gb
['F3 F', 'B,3 B,3 B, B,2 G, G, G,4']  
X:1
L:1/16
Q:1/4=58
M:2/4
K:Gb
 B, | F3 F F3 F | E4 E2 E E | E3 E (E2 D2) | D3 B, D4 | E4 E3 E | E2 D2 D3 E | D3 D D2 B,2 | 
 D3 D B,3 B, ||[M:3/4] B,3 B, B,2 G,3/2 G,/ B, B,3 | B,3 B, B,2 G, G, G,4 ||[M:2/4] G,3 G, G,3 :|  