How do I stop the music and photo via the button? No code

I had a very serious problem.
4 photos, 4 music, buttons help to change the photo and music. I put “start” and “pause” on the Timeline. OK. It worked. Now the music switches from the buttons. Only the fourth music play endlessly. Pressing the buttons again only works for photos, but not for music, how do I solve the problem? https://drive.google.com/file/d/1WCD_oqUbNEaoIsVnbL3Yox7oFatush1e/view?usp=sharing Only I don’t know how to be friends with the code.:sweat_smile:

All. Stop! I solved the problem. Who needs it. Tell. No code.:grinning: