Create a composition following the given musical structure and theme.
X:1
L:1/16
M:2/4
K:Bb
['c2 d4 dg c2c2b2bg']  
X:1
L:1/16
M:2/4
K:Bb
 c2 d4 dg | c2c2b2bg | g2fdd2fb | d8 | c2 d4 dg | c2c2b2bg | g2fdd2db | g8 |]  