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
['', 'G>ED>B, A,2', 'A,2 A,>D']  
X:1
L:1/8
M:4/4
K:G
 G>A |: B<dB>A G2 G>c | B<d (3BAG E2 G>A | B<dB>d e<gd>g | e<gd>B A2 A>a | g>fe>d (3gbg b>a | 
 g>fe>d f<gg>d | c>BA>G B<dB>A |1 G>ED>B, A,2 A,>A :|2 G>ED>B, A,2 A,>D |: G,2 G,2 A,<B,B,>A, | 
 G,>A,B,>D E<G (3GAB | B<A (3ABd A<B (3BAG | E<GD>B, A,2 A,>D | G,2 G,2 A,<B,B,>A, | 
 G,>A,B,>D E<GG>A | B>AA>G B<dB>A |1 G>ED>B, A,2 A,>D :|2 G>ED>B, A,2 A,>A ||  