Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
Q:1/2=90
M:4/4
K:C
['e2 e2', 'f2 f2'  
X:1
L:1/8
Q:1/2=90
M:4/4
K:C
 a>g | e2 e2 efdB | c2 c2 cdef | gege agfe | fedc cBAG | e2 e2 egfa | g2 g2 g2 de | fedc BAG^F | 
 G2 G2 G2 :: d>e | f2 f2 f2 de | fedc cBAG | EGBe gbc'e | fdec cBAG | a2 a2 abc'g | gege cege | 
 c'bc'g afdB | c2 c2 c2"^Rpt added" :|  