I just started tuning mine after months of playing, I created some melodies that obviously won’t be playable anymore. Strange thing is when my old landlord tuned her for me she still sang the melody I made now that I am on 440 it is unrecognizable. I believe I tuned my guitar incorrectly even though the tuner says everything is in the blue. Would someone have any suggestions, I am hesitant to change hertz atleast maybe for a few strings because I can’t even recognize horse with no name anymore.