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:2/4
K:G
['AA Ad B2 G']  
X:1
L:1/8
M:2/4
K:G
 D | GD B,D | GG G(F/G/) | AA Ad | B2 G B/A/ | GD B, B,/D/ | GG G F/G/ | AA Ad | B2 G z | 
 B3/2 B/ Bd | d/c/ c/B/ c2 | AA Ac | c/B/ B/A/ B2 | G3/2 G/ GB | B/A/ A/B/ c3/2 A/ | GF EF | 
 G2 G ||  