It's a great idea to invest in a tuner. It's important to keep those fiddles in tune, and now that we're coming to the colder weather, they are going to start going REALLY out of tune! While we carry some tuners at the school and there are a number of good ones for sale online, you can now use free online tuners or the iphone application. Maggie has the application on her iphone, so talk with her if you are interested in getting it.
Although I still prefer a portable tuner, this online tuner is pretty good in a pinch if you've misplaced your tuner or haven't gotten one yet. (Just be sure to use the fine tuners rather than the pegs on fractional size violins. The website says otherwise.)
You just click on each note and tune the strings to the pitch you hear.
Those of you who have the assignment to sing A everyday to develop perfect pitch or good relative pitch who do not have a tuner can use this one to check if you are singing in tune!
Now if you sound out of tune, you'll know it's not your violin....