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
['ba g2 ge dBGA B3 A', 'G3 D GABc defg']  
X:1
L:1/8
M:4/4
K:G
 b2 ba g2 ge | dBGA B3 A | GABc defg | agfe d3 f | g2 ba g2 ge | dBGA B3 A | Ggfe (3dcB (3cBA | 
 G2 F2 G4 :| e2 e2 d2 B2 | G2 GE G3 D | GABc defg | agfe d3 d | edge d3 B | GAGE G3 D | GABc defg | 
 a2 d2 g4 :|  