Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
M:4/4
K:C
['def edc dAF DFA', '(fa).f (gb).g (fa).g edc']  
X:1
L:1/8
M:4/4
K:C
 BEA ue2003 |[M:6/8][K:D]SOSOO .!fermata!PMTCOMDFA def | edc dAF | DFA dAF | FEE EFE | DFA def | 
 edc dAF | DFA deg | fdd d3 :: fed (fa).f | (gb).g (fa).g | edc (fa).f | (ge).e eag | fed (fa).f | 
 (gb).g (fa).g | edc Aag | fdd d3 :|  