China's State Council Information Office released the standard performance scores and the official version of audio tracks of the National Anthem at a press conference on Sept 1. According to the National Anthem Law, they shall be released on the official websites of the National People's Congress and the Chinese central government.
Standard performance scores released on Sept 1 include:
Orchestra Score (Download)
Band Score (Download)
Piano Accompaniment Score (Download)
Newly released official version of audio tracks includes:
Orchestra Version (Download)
Orchestra Chorus Version (Download)
Band Version (Download)
Band Chorus Version (Download)