I have searched for a couple guitar tuners online, and they all sound different (only slightly!.!.!.) Then I tried to tune it to my piano, and I can't because the piano sounds too much like a piano to tune it to a guitar!. I got my guitar a couple of days ago, ad the guy tuned it at the store, but he said I will have to tune it again in a couple of days, because its going to be flat!. So, what are some reliable online guitar tuners that sound like they are supposed to!?Www@QuestionHome@Com