Add a separate volume slider for structure music

Add a separate volume slider for structure music
This idea/suggestion is Open. You can respond to ask questions or discuss the idea and either vote it up or down if you believe it should or should not be implemented, respectively. Popular suggestions and ideas will be considered by the development team to become reality in-game.
Proposal
Add a volume slider for structure music.
Justification
Currently music clashes - you can hear multiple songs simultaneously between structures and the base-level background music.
Motivation
The music is great as many of us would probably agree, but listening to multiple tracks simultaneously is driving my ears wild.
Also open to other strategies for making this more tolerable - such as one music track being granted precedence over all others. Main thing for me is just having one track play at a time.