Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/4
M:4/4
K:G
['F E']  
X:1
L:1/4
M:4/4
K:G
 E2 E F | G3 F | E B A G | F4 | E2 E F | G3 F | E B A G | F4 | B2 B3/2 B/ | B3 B | B d c B | A4 | 
 A2 d c | B3 (A/G/) | F E E ^D | E4 |]  