Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:2/4
K:Bb
['b2 cd g f2 c fg/b/dc']  
X:1
L:1/8
M:2/4
K:Bb
 bc/d/c/b/g | f/d/ f2 g | b>cfd | c4 | f2 fd | c>dcb | g/b/g/f/dc/d/ | f4 | cd/c/bg/b/ | cd/c/ b2 | 
 d>fgb | f/g/f/d/ f2 | b>cbg | fd f2 | b>cbg | f/g/f/d/ f2 | d>fgb | fgfd | b2 cd | g f2 c | 
 fg/b/dc | B4 | dz/c/bd | cbg/f/d | d>fgb | fg/b/fd | b2 cd | g f2 c | fg/b/dc | B4 |]  