Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:3/4
K:C
['fG fG']  
X:1
L:1/8
M:3/4
K:C
"C" c2 eG eG |"G7" g2 fG fG | Bd fG fG |"C" ag eG eG | c2 eG eG |"G7" g2 fG fG | Bd fG fG |1 
"C" c2 z2 z2 :|2"C" c2 z2 (3(c'ba) |:"G7" g2 fG fG |"C" c2 eG eG |"G7" Bd fG fG |"C" ce gc' ba | 
"G7" g2 fG fG |"C" c2 eG eG |"G7" Bd fG fG |1"C" c2 z2 (3(c'ba) :|2"C" c2 z2 z2 |]  