Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
['c{d} cBc', 'c2 e']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
 G2 c{d} cBc | e2 c{d} cBc | A2 d d2 e | fdc BAG | G2 c{d} cBc | e2 c{d} cBc | BAG GBc | 
 cde d2 c :: c2 e f a2 | g2 a gec | c2 e f a2 | gec d3 | c2 e f2 a | g2 a gec | BAG GBc | cde d3 :|  