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:6/8
K:Dmix
['DED DEG A2 A ABc BAG AGE', 'dBG AGA', 'ADD BDD ADD ABc BAG AGE']  
X:1
L:1/8
M:6/8
K:Dmix
|: DED DEG | A2 A ABc | BAG AGE | GEA GED | DED DEG | A2 A ABc | BAG AGE | GED D3 :| ded dBG | 
 AGA BGE | ded dBG | AGA GAB | g2 e dBG | AGA BGE | B2 G AGE | GAG G3 :| ADD BDD | ADD ABc | 
 BAG AGE | GEA GED | ADD BDD | ADD ABc | BAG AGE | GED D3 :|  