In order to celebrate the 50th anniversary of the establishment of diplomatic relations between China and Austria, the "cloud music festival" jointly organized by the Central Conservatory of music of China and the University of music and performing arts of Vienna, Austria, held an opening concert at the concert hall of Vienna, the capital of Austria, on the evening of July 7. That night, the Vienna Concert Hall was full. Philippe Jordan, music director and conductor of the Vienna National Opera House, and Lang Lang, a famous Chinese pianist, joined hands with the Webern Symphony Orchestra of the Vienna University of music and performing arts to jointly perform Tchaikovsky's fantasy overture of Romeo and Juliet. The perfect cooperation and wonderful performance of the musicians won the audience's constant applause. Li Xiaosi, Chinese ambassador to Austria, raunsky tiffenthal, Secretary General of the Austrian Ministry of foreign affairs, and Zuqian, President of Vienna University of music and performing arts, attended the opening concert. It is reported that the "cloud music festival" to celebrate the 50th anniversary of the establishment of diplomatic relations between China and Austria lasts for four days. The opening performance will be held in Vienna on the 7th and the closing performance will be held in Beijing on the 10th. During this period, music art and education exchange activities such as "international music online master class" and "China Austria culture and Art Management Forum" were held in two cities in the form of online and offline. (outlook new era)