Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:4/4
K:Bb
['c2 f2']  
X:1
L:1/8
M:4/4
K:Bb
 cccfcbgf | gbbc c6 g2 c>bgbc>bgB | c2 c2 f2 g2 | f4 f2 z2 | b2 gb c2 f2 | cbbg g2 fg | 
 c g2 b g2 gf | f4 f2 z2 | b2 gb c2 f2 | cbbg g2 fg | b g2 b g2 gf | f8 | f2 z6 |]  