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:D
['DFA AFD GBB B2', 'd2 d dAF']  
X:1
L:1/8
M:6/8
K:D
 D | DFA AFD | GBB B2 A/G/ | FGA AFD | GEE E2 F/E/ | DFA AFD | GBB B2 d | AFD GEC | D3 D2 :: A | 
 d2 d dAF | GBG AFD | d2 d dAF | Bed cBA | d2 d dAF | GBG AFD | EFG Bge | cAc d2 :|  