Seconded. I just came here to pose this same question. I absolutely love the resonator and use it frequently, but I don't want music playing when I'm caving or in combat or just exploring. I find it incredibly distracting and sometimes even a hinderance because I can't hear as clearly when drifters are sneaking up on me. Unfortunately the only way I've found to deal with it is to only turn up the music volume when you're using the resonator and just have it set to zero at all other times. Hopefully a "never" option will be added to the music frequency setting eventually.