Sound channel and volume control

I started breaking up the sounds in my game. I have two music channels and 1 sound channel. 4 volume controls. 1 global volume that’s works. 1 fore background music. One fore the other music track that has ambeint music track. Both of those work. Then a third one fore sound channel. That don’t work. It’s set up just like the music but with the sound channel.
I’m using variables that store the volume levels.
Should both the music and sound channels work the same way as far as how to control them? Or is their something I should know?