Hi,
I used to tune my guitar with a piano, or with a tuner on the internet.
When only one or two strings didn't sound ok, I fixed it by ear though.
It's been a week now that I just CAN'T tune my guitar anymore! Even when someone plays it on a piano (E,A,D.. you get it), It never sounds in tune; I have to ask someone to do it for me. I just don't understand, it feels like I'm hearing two different notes or noises when someone plays a note on a instrument ( especially online guitar tuner that sound so different).
My english is really bad and that's hard to explain, so if anyone has encountered that situation and/or can help me, please do. And I know it sounds really weird.
Thanks
Ps: I'm an intermediate guitar player and I can play some classical stuff on the piano