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:C
['f>ed cAA f>ed', 'cAA A2']  
X:1
L:1/8
M:4/4
K:C
 a a da ue =c aua .eave e ABC a!p!e e D Mve b uca e da veb e!p!acg D G e | 
[M:6/8][K:D] fed[Q:1/8=160].g | f>ed cAA | f>ed cBA | FGA ABG | FGA A2 g | f>ed cAA | f>ed cAG | 
 FDF G2 A/G/ | F>DD D2 :| A/G/ | F>GA ABc | d/e/fd cAG | cAA A2 G | cAA A2 g | f>ed cAA | 
 f>ed cAG | FDF G2 A/G/ | F>DD D2 :|  