The bell starts with two pieces of music, and then a whistle. What song is it?

Strictly speaking, the ringtone is an English song "Cry On My Shoulder" sung by Daniel Kü blbckalexander Klaw Juliet Schoppmann in Kubka, which is a standard inspirational song performed by singers of Germany's Got Talent. "Parting doesn't necessarily mean breaking up" and "the poison of memories" in the play are also quite pleasant to listen to. If you have any questions in the future, you can be on call.