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:Emin
['Beed e2 de']  
X:1
L:1/8
M:4/4
K:Emin
|: EB B2 dB B2 | EBBA FDFA | BE E2 BABd |1 egfe dBAF :|2 dgfe dBBe | Beed e2 de | fede fede | 
 febe febe | fede fede | Beed e2 de | fedf defa | b3 g a3 f | g2 fe dBAF ||  