Craft musical compositions adhering to the prescribed form and the provided musical idea.
X:1
L:1/8
M:4/4
K:Bb
['B2 FD', 'FBB g fBdB fBeg fBdf gccb fBdB'  
X:1
L:1/8
M:4/4
K:Bb
 d | B2 FD (Cc)cd | B2 FD (FD)dc | BGFD CEDC | B,FDE FBB :| g | fBdB fBeg | fBdf gccb | fBdB dfbg | 
 fdcB FBBg | fBdf Bfdf | egdf gcce | dBFD FBfd | gecf dBB ||  