Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:E
['gag fgf e2', 'Bcd eBB gBB eBB gfe cff f2']  
X:1
L:1/8
M:6/8
K:E
 b2 b gbg | fgf efg | a2 a gag | fgf e2 c | BcB B2 G | B2 c e2 f | g2 g gfe | f2 f fga | b2 b gbg | 
 fgf efg | a2 a gag | fgf e2 c | BcB B2 G | B2 c e2 f | gag fgf | e2 e Bcd || eBB gBB | eBB gfe | 
 cff f2 e | cff fec | BcB B2 G | B2 c e2 f | g2 g gfe | f2 f Bcd | eBB gBB | eBB gfe | cff f2 e | 
 cff fec | BcB B2 G | B2 c e2 f | g2 g fgf | e2 e ega ||  