neither of yout two assertions that they have played many venues in beijing or that they shared a stage with sonic youth seemed to me to be an assertion of notability that rises level required by cds a however since i can see that some people would see opening for a major band as an assertion of notability and given that the show occured outside of the band's country i will restore the article however i am going to nominate for afd that will give you five days to improve the article and or convince a wider audience that the band is notable i would suggest that you find a better source for the vienna gig as a jpg of a poster merely proves that the poster was printed not that the gig happened