Create a composition following the given musical structure and theme.
X:1
L:1/8
M:2/4
K:G
['B2 G', 'DD GG BB AD EF G2'  
X:1
L:1/8
M:2/4
K:G
"A" |:"D7" D c2 A |"G" G B2 G |"D7" DD EF |1,3"G" G2 B2 :|2,4"G" G z G2 :|"B" |:"D7" A>F DD | 
"G" GG BB |"D7" AD EF |"G" G2 G2 :|  