The American Institute of Conservatory Music announced Monday it will perform at the Capitol for the first time since the assassination of U.N. Secretary General Antonio Guterres.

In a news release, the conservatory said it will “show support for the victims of the September 11th attacks” by playing at the annual Capitol ceremony.

Guterres was shot and killed on the White House lawn during the inauguration of President Donald Trump in January.

Groups including the U-S Conservatory and the University of Wisconsin-Madison, which has also hosted the symphony, have said they will not perform in the Capitol until Congress resolves their concerns about the music.