How do I make a condition for a specific layout

So,if i make a background music play on start of layout,it plays on start of any layout,how can i make it play on a specific layout,so for example on main menu there is a background music playing,and then on level 1 there is different music...etc.?

give the filenames the names of the layout and on start of layout

audio play (by name)

LayoutName

or

if layoutname = level1

audio play ...