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
['B2 B (dcB) (c2 A) (B2 G)', 'G3 (ba).g (fe).^d (egb) e3 gfe dcB']  
X:1
L:1/8
M:6/8
K:G
"_VB" B2 B (dcB) | (c2 A) (B2 G) | (GBd) (GBd) | (FAd) (FAd) | (GAB) (cde) | (f2 e) d2 c | 
 (c2 B) (c2 d) | (GBA) G3 || (ba).g (fe).^d | (egb) e3 | gfe dcB | ceg c'3 | (Bcd edc) | 
 (BAB) (GAB) | (c2 B) (c2 d) | (GBA) G3 |]  