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:4/4
K:G
['G3 A GFED d3 e c2 B2']  
X:1
L:1/8
M:4/4
K:G
|: D2 |"G" G3 A GFED |"D" d3 e d2"C" c2 |"G" B2 G>A BAGF |"Em" E4-"C" EDEF |"G" G3 A GFED | 
"D" d3 e d2"C" c2 |"G" B2 G>A"D" BAGF |"G" G6 :: d2 |"C" e2 c2 g2 e2 |"Bm" d>cBc d3 d | 
"Am" c2 c>d cBAG |"C" E3 F"D" EDEF |"G" G3 A GFED |"D" d3 e d2"C" c2 |"G" B2 G>A"D" BAGF |"G" G6 :|  