Create music compositions that adhere to the given structure and incorporate the provided musical concept.
X:1
L:1/8
M:2/2
K:Bb
['B2 FD', 'FBB g fBdB fBeg fBdf gccb fBdB'  
X:1
L:1/8
M:2/2
K:Bb
 d | B2 FD Cccd | B2 FD FDdc | BGFD CEDC | B,FDE FBB :| g | fBdB fBeg | fBdf gccb | fBdB dfbg | 
 fdcB FBBg | fBdf Bfdf | egdf gcce | dBFD FBfd | gecf dBB ||  