This sounds a bit strange from the title so you'll need explanation.
When I make my game, I put on BG music on the first layout and make it loop so that plays on other layouts. However, when I return to the first layout, the BG music will overlap. What I want achieve essentially is
on the start of layout > play music
sub-event> if music is playing > "do nothing"
Here is my question: how do you do "do nothing?" I have tried "stop loop" but it doesn't work and there is probably more to it than that. I have tried using a variable but things got messy after that so I erased it.
FYI, on the topic of using variables, what I did is that I associated music playing or not with the number but then it goes back to the same case as before and it's still the same case when it's with a boolean, just alot more messy.