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
['G G G/A/B/c/ d2 dB cd ef', 'G>A Bc ed']  
X:1
L:1/8
M:2/4
K:G
 B/A/ | G G G/A/B/c/ | d2 dB | cd ef | g2 gb | ag fe | ed B>d | ed cB | A2 A/c/B/A/ | 
 G G G/A/B/c/ | d2 dB | cd ef | g2 gb | ag fe | ed B>A | GB c/B/ A | G3 |: B/A/ | G>A Bc | ed BB | 
 A>B c/B/A/c/ | ed BA | G>A Bc | ed Bg | f/e/d/c/ BA | G3 :|  