Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
M:4/4
K:Ador
['', 'AGEG A2 Bd edBd edBA', 'A a2 a abag edef']  
X:1
L:1/8
M:4/4
K:Ador
 B |: AGEG A2 Bd | edBd edBA | GEDE GABd | g2 fa gedB | AGEG A2 Bd | edBd edBA | G2 Bd eaaf | 
 gedB A3 B :: A a2 a abag | edef g/f/e dc | BGFG EGDE | GABd eBdB |1 A a2 a abag | edef g2 fg | 
 afge fded | BgBG A3 B :|2 ABAG A2 Bd | edBd edBA | G2 Bd eaaf | gedB A3 B ||  