michael_glenn wrote:What do you do to maintain your silver tuba or euph? How often do you go to the extreme of getting out the silver polish, scrubbing it with it, and then rinsing the whole thing off? (Those were the instructions on the polish I got)
I just want to keep my Hirsbrunner pretty.

When I had a silver Marzan, I never had to do all that much to keep it looking decent. I would polish it once or twice a year, and in-between it still looked nice.
Some of it depends on how it is stored -- mine was in a Cronkhite bag, and that really seemed to prevent a lot of tarnish. You can also buy some sort of tarnish-protecting strips (3M?) to put in your bag and help slow the process.
Overall though, tarnish is going to happen, and you'll lose that fight... best you can do is slow the process. They also say that every time you polish, you are removing a really, really, small amount of the silver. If you polish like crazy (or have a very thin plating), you might eventually see a difference.
Another thought -- polish the bell more often than the rest of it. That's the only part people *really* see from a distance anyway!