Design musical compositions that conform to the indicated framework and encompass the proposed musical concept.
X:1
L:1/8
M:2/4
K:Bmin
['BA FE FA d>e fa', 'ba af'  
X:1
L:1/8
M:2/4
K:Bmin
|: fB BA | FE FA | d>e fa | ba fa | dB BA | FE FA | d>e fa | b2 b2 :: ba af | ba af | d>e fa | 
 ba a2 | ba af | ba af | d>e fa | b2 b2 :|  