I've recently noticed..really recently that some of my keys on my clairnet are, not sure wahts its called, but going blueish? they need to be pollished I guess, has anyone one done this before? what did you use to do this?

If I understand correctly your keys are going "Bluish".

Maybe if you start playing a different type of music they'll revert to their former selves. If you keep up playing what your playing, next thing you know you'll be asking why they've now gone to "Jazz"!

Sorry.. I just couldn't help it. It's got to be my sense of humor.

Sometimes tarnish can look blue.
If your keys are aactually silver then it could be just simple tarnish.
If you want to polish them you can use a fine silver polish like Wrights silver polish.

If you do chose to polish them be very very careful. You will want to apply just a very little bit of polish to a clean cloth and polish the keys. Then wipe dry. Because you do not want to get any polish on any of your key pads.