Hello Kirill,
Maybe i'm not using it right, but i don't manage to stop music even with the stop sound function:
I can only add new music to skip the previous one.
If you do not need to loop it is better to use the "Play sound" element. "Stop sound" can only stop the sound started by "Play sound".
If you are using music for a scene, then to stop it try to write "false", "off" or something else.
"False" is working well, thanks a lot!
