Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/8
M:2/2
K:D
['F3 A GF D2 de (3fed', 'ag (3fga']  
X:1
L:1/8
M:2/2
K:D
 AG | F3 A GF D2 | de (3fed dcAF | G3 F GFDE | FdAF GEAG | F3 A GF D2 | de (3fed dcAG | AdcA GdAG | 
 F2 DE D2 :: fg | ag (3fga gf e2 | (3fed (3edc dc A2 | ag (3fga gfde | fdgf ezfg | a2 (3gfe f3 e | 
 dcde fdAG | AdcA GdAG | F2 DE D2 :|  