Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:6/8
K:Edor
['BAG EDB, DEG', 'beg fed']  
X:1
L:1/8
M:6/8
K:Edor
|: A | B2 e dBA | BAG EDB, | DEG Eed | BAG ABd | ege fBA | BAG EDB, | DEG Eef |1 BAG E2 :|2 
 BAG e2 |: d | e2 f gfe | beg fed | Beg beg | fed e2 f | g2 f edB | AFD DFA | dcd fed | BAF E2 :|  