Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/8=333
M:2/2
K:Emin
['B(E E2)', 'B2 ed efge']  
X:1
L:1/8
Q:1/8=333
M:2/2
K:Emin
 B(E E2) B(E E2) | AD (3(FED) FGAc | B(E E2) BFAF | GEAF E2 FA :| | B2 ed efge | defg (3(agf) ed | 
 B2 ed efge | agfa (3(gfe) ed | B2 ed efge | defg afdf | efga bagf | (3(efe) fd eddc |]  