Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:6/8
K:G
['BAB GED', 'Bcd ded']  
X:1
L:1/8
M:6/8
K:G
 A | BAB GED | EFG GAB | BAB GED | EAA ABc | BAB GED | EFG GAB | dfe dcA | B<GG G2 :: A | Bcd ded | 
 dge dBG | Bcd ded | efd g2 d | Bcd ded | dge dBG | dfe dcA | B<GG G2 :|  