I cant tune my acoustic guitar , Whenever my moms boyfriend comes around he can do t perfectly in under a minute but i cant tune one string right after an hour! ive looked at vids that show you what the strings should sound like when properly tuned but i still can never get them to sound like they should i broke my 1st string in the attempt the technique where the strings 5th fret should sound like the string below its open fret
eg: E 5th fret should sound like A open fret
A 5th fret should sound like D open fret
so on and so forth
but i cant do that because
ALL my strings are out of tune
also another problem the morning after the guitar is tuned it goes out of tune , why does this happen?
i am new to the guitar and am probably missing something obvious or doing something horrendous to my guitar but i dont know what it is .