whenever i play an e shaped barre chord at the 3rd fret i get a harmonic ringing when i release the chord. its very annoying and its very easy to hear. whats going on?
Quote by XaosKnight
I quote myself
"a E shaped barre chord at the 3rd fret" lol you mean a G

anticipate the harmonic and mute it before it happens
You most likely are still resting two of your fingers on the fifth fret and playing with a bit of distortion. There are natural harmonics on this fifth fret and that's what's causing them.

You can avoid this problem by muting the strings with the palm of your picking hand if you're trying to make no noise come from the guitar. If it's happening between chord changes, practice changes and you'll get faster.
And no, Guitar Hero will not help. Even on expert. Really.