Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:6/8
K:Bmin
['BAB cBc dcd ede fed cBc', 'cdc cde'  
X:1
L:1/8
M:6/8
K:Bmin
|: BAB cBc | dcd ede | fed cBc | B3 B3 :: cAF cAF | cdc cde | fdB fdB | fgf fed | cAF c2 c | 
 cdc cde | fed cBc | B3 B3 :|  