Can't sign into Apple Music since Catalina 10.15.1 update

I have not been able to sign in to Apple Music on my MacBook Pro since I installed the Catalina 10.15.1 update. When I launch Music, I see a message "An error occurred," and a "Try again" button that doesn't do anything. If I go to the Account menu and click Sign In, I enter my user name and password, but the result is the same "An error occurred" message. I cannot access my Apple Music account. My iPhone and iPad are unaffected.

Any suggestions?