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:6/8
K:G
['d2 B', 'A2 G']  
X:1
L:1/8
M:6/8
K:G
 d2 B c2 A | B2 G AFD | d2 B c2 A | BGF GBc | d2 B c2 A | B2 G AFD | GAB d2 B | cBA G3 :| A3 A2 G | 
 A2 G FED | G3 GFG | B2 A GED | A3 A2 G | ABG FED | GAB d2 B | cBA G3 :|  