Develop a musical piece incorporating the designated alphabet-based pattern and the supplied melodic theme.
X:1
L:1/8
M:6/8
K:Edor
['', 'GEE B,EE', 'FGA Bee', '', 'dBG A2']  
X:1
L:1/8
M:6/8
K:Edor
 F |: GEE B,EE | F3 DFA | GEE B,EE | FED E2 F | GEE B,EE | F3 DFA | BAG BdB |1 AFD E2 F :|2 
 AFD E2 c |: d3 dcB | AFD FGA | Bee ede | fed AFA | d3 dcB | AFD FGA | Bee BdB |1 AFD E2 c :|2 
 AFD E2 ||[K:Ador] B |: cAA EAA | B3 GBd | cAA EAA | BAG A2 B | cAA EAA | B3 GBd | edc ege |1 
 dBG A2 B :|2 dBG A2 f |: g3 gfe | dBG Bcd | eaa aga | bag e2 d | g3 gfe | dBG Bcd | eaa ege |1 
 dBG A2 f :|2 dBG A2 B ||  