I've had this many times. Today it was e.g. B. So I listened to music (on Youtube) and shared the screen, then YouTube hung (I had bad internet) and I made the screen so that it was only at stake. Then and there came so strange trumpet music that I don't have on my phone. I then deleted all parts first (so if you press this square at the bottom left of the screen). But the music didn't stop, then I started to write this question here and the music hung there somehow, now it's gone. I would like to know why something like this comes. I have a Huawei P smart 2019.
Perhaps it was YouTube itself that he chose trumpet music by chance.
Could be
