Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/2
K:C
['c2 ae ga g2', '[Gc] c2 [Gc] [Gc]2']  
X:1
L:1/8
M:2/2
K:C
 cd | e2 G2 e2 ed | c2 ae ga g2 | GABc dedB | c2 ae ga g2 | e2 G2 e2 ed | c2 ae ga g2 | 
 GABc dedB |1 [Gc] c2 [Gc] [Gc]2 cd :|2 [Gc] c2 [Gc] [Gc]2 g2 || a2 b2 c'2 c'g | a2 g/a/g edcA | 
 GABc dedB | cdcA G2 g2 | a2 b2 c'2 c'g | a2 g/a/g edcA | GABc dedB |1 [Gc] c2 [Gc] [Gc]2 cd :|2 
 [Gc] c2 [Gc] [Gc]2 g2 ||  