We chose the performance based on the orchestra. Since the Vienna Philharmonic did not perform in those days, we chose the Vienna Symphony Orchestra, which happened to have a performance in the Vienna Concert Hall. The most angry thing is that there was a mistake in Google Map's guide. The guide is the Golden Hall. In fact, these are two places. The Vienna Concert Hall is on the opposite side of the Golden Hall. We found it after a while. Although the hardware facilities are not as good as those in China, the performance environment and humanized service are really first-class. Before the performance, we ate much better in the restaurant of the theatre than in our national theatre, and there were lights on the wall of the restaurant. Which light flashed indicates which theatre can enter, so as to ensure that we do not delay the performance. During the break, you can also go to the adjacent lounge to buy drinks, drinks and desserts, which serve well. By the way, we also checked the strategy before to see if we want to wear formal clothes. It's easier for ladies to do it. Just a formal dress. My husband purchased a casual jacket suit specially for this purpose, so that we can give consideration to both playing and watching on that day. Older foreigners wear basic suits and shoes. Young people only see one wearing a short-sleeved T-shirt, most of which are formal. Apart from us, there are a couple of Chinese. I observed them carefully. Their upper body is fine and their lower body is wearing jeans. It's better not to wear jeans on such occasions. After all, it's a kind of respect for people's culture to follow the custom when in Rome.