What are fuses used for?

So, do different fuses work better for different genres of music? What fuse should I get for Rock? Blues? Jazz?

Is the same fuse (brand/series, I know I will need different ratings) best for all equipment, or will I need to try various combinations for all equipment (turntable, pre-amp, amp, cd player, speakers)?

Is there a fuse that I can swap out in my remote control, if so how important is that to sound quality?

Who said anything about two years?

@ geoffkait1

I worked with several Acoustical Engineers (some PhDs) in the past, their coursework all expanded on Mechanical Engineering as this is how acoustics is best modeled. Just a plain old BSEE here.