You can wear a tuxedo in this case.

Tuxedo is men’s formal clothing and a relatively common dress, which can show the solemnity and elegance of the performer. On formal occasions, such as concerts or games, wearing a tuxedo is a sign of respect for the audience and the music.

However, tuxedos are not suitable for all piano playing occasions. In informal settings or daily practice, clothing that is comfortable and comfortable may be more appropriate.