My thought process to create this project was, I thought that the cat should be the start switch and the doughnut the stop switch. I thought about that I should do forever if so the switch works forever. Use the start sign and space to start, the stop sign to stop. When the project is started, click the doughnut to stop the music, click the cat to start the music again.
The sprite is made by myself, but thanks to scratch for helping me make this!