Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/16
M:2/4
K:C
['B c3']  
X:1
L:1/16
M:2/4
K:C
 G | A3 B c3 A | G4 G3 G | A3 B c3 A | d6 z d | e3 d d3 B | c3 B A3 ^F | G3 B A3 ^F | D4 E3 E | 
 D3 D D3 D | E3 D C3 C | D3 D E3 G | A6 z ||  