Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
M:4/4
K:Bb
['c2 c2']  
X:1
L:1/8
M:4/4
K:Bb
 F | B>FD>FB>FD>F | B>AB>c d2 B2 | d>cd>ef>fe>d | c2 c2 c2 z F | B>FD>FB>FD>F | B>AB>c d2 B2 | 
 d>cd>ef>fe>d | c2 c2 c2 z2 | c>dc>BA>GF>A | c>Bc>d e2 c2 | d>cd>ef>fB>c | d2 c>c B2 z |]  