Is it the kind of thing that could have a hot-key? eg: CTRL+M to toggle music on/off?
I too love playing the music, but would like an option to easily switch it off an put on some 'normal' music when my wife starts to tire of it. (Yeah, I don't get why anyone would tire of that cool soundtrack either .. but she does.) *sigh*
Note: I have it playing either the excellent Amiga or PSX music. I never was a fan of that midi tune, but I heard the Amiga soundtrack so so so much back in the day that is has huge nostalgia value for me.