Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:6/8
K:Bmin
['dBB B2 A Bdd d2 e faf', 'f aff fed dee e2 f', 'A2 B dBd ede f3', 'edd eff']  
X:1
L:1/8
M:6/8
K:Bmin
|: e | dBB B2 A | Bdd d2 e | faf fed | fee efe | dBB B2 A | Bdd d2 e | faf edB | Add d2 :: f | 
 aff fed | dee e2 f | afa fef | dBB B2 f | aff fed | dee e2 f | faf edB | Add d2 :: f | A2 B dBd | 
 ede f3 | afa fef | dff edB | A2 B dBd | ede f3 | faf edB | Add d2 :: f | Add d f2 | edd eff | 
 Add dff | fed BAA | Add dff | edd eff | faf edB | Add d2 :|  