Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:G
['AD{F}ED AD{F}ED E2', 'D2 d3 g fdec']  
X:1
L:1/8
M:4/4
K:G
 AD{F}ED AD{F}ED | E2 cE dEcE | AD{F}ED AD{F}ED | E2 cE{G} ED D2 | AD{F}ED AD{F}ED | E2 cE dEcE | 
 cdBc AGED | E2 cE{G} ED D2 || d3 g fdec | ABcA dBcB | Ad d2 Ad{e}dB | cAGE{G} ED D2 | d3 g fdec | 
 ABcd efge | afge dged | c3 d cAGE ||  