original: mark schatz has played bass regularly with the group since 2003 .
simplifications: mark schatz has played bass regularly with the group since 2003 . mark schatz has played with the band since 2003 . mark schatz has regularly played bass with the group since 2003 . mark schatz has played bass regulary with the group since 2003 . mark schatz has played bass regularly with the group since 2003 . 1 . mark schatz has played bass regularly with the group since 2003 . since 2003 , mark schatz played bass a lot with the group . mark schatz has played bass with the group since 2003 .