This got me thinking about the way I was recording this specific song where I pushed my guitar sound as much as possible to left channel, so that it was easy for me to isolate original track vs my playing by simply switching to left or right channel (at the time I thought it's a clever idea ;) ). Is it possible that what you was hearing was only the sound from right channel...? This would explain the 10% volume you mentioned. And to be clear, if that was the issue and, after setting balance to center, you are finally able to hear clearly my guitar please be prepared that your opinion might not only remain the same but it could get worse as well XD. There is certainly no doubt that I'm not a world-class virtuoso ;) Anyway thanks for that comment, it's of great value to me!