Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
M:6/8
K:C
['G ccc ced cAA A2 A ddd']  
X:1
L:1/8
M:6/8
K:C
 G | ccc ced | cAA A2 A | ddd Bcd | dGG G2 G | GGE c2 c | AAA A!fermata!f f | edc cBc | (ced c3) |]  