Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:Amix
['fed cAA', 'Bcd cee dff cee', 'g2 e', 'AEA A2 e cAc']  
X:1
L:1/8
M:6/8
K:Amix
 fed cAA | EAA cBA | fed cAA | BGB dcB | fed cAA | EAA cBA | faf g2 e | dBG Bcd :| cee dff | 
 cee ecA | cee dfa | BGG Bcd | cee dff | cee efg | faf g2 e | dBG Bcd :| Ace aga | ecA ecA | 
 GBd gfg | BGG Bcd | faf g2 e | f2 d ecA | a2 f g2 e | dBG Bcd :| AEA A2 e | cAc ecB | AEA AB=c | 
 BGB dcB | AEA A2 e | cAc efg | faf g2 e | dBG Bcd :|  