According to the public information of official website of Xi 'an Conservatory of Music, I know that I only need to take the joint exam. After passing the entrance exam, you can take part in the school exam. The entrance exam is a pass for the school exam, so there is no need for an interview.

Xi' an Conservatory of Music was founded in 1949, and its predecessor was the Music Department of Northwest Art School founded by Marshal He Long in the Jin-Sui Border Region in 1948.