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
['DGBG dGBG A2 g/f/e', 'dg g2']  
X:1
L:1/8
M:4/4
K:G
 | ge | d2 BG DGBG | dGBG A2 g/f/e | d2 BG DGBG | AF F2 A3 B | dB B2 DGBG | dGBG A2 g/f/e | 
 dcBG DG G2 | AF F2 A2 Bc || dg g2 dgeg | dg g2 B2 Bc | dg g2 dged | BAGA B3 c | dg g2 dgeg | 
 dg g2 B2 Bc | dega b2 ag | fdcA G2 ||  