Toucher, i struggle with the same issue. I have bought tracks at certain sites, but sometims they are in a key that have problems with, so i try to shift it and with little success, so far i have used mostly midi, but as we all know the guitar sounds cheap in most. I try to process, but it does not always come out well.

Have you tried this site i bought three or four a few weeks back and they are great. http://www.karaoke-version.com/ they sell tracks that are multitracka dn you can mix them to a degree before playback. Plus you can shift them a cent ot two.

Some songs need that unique hook to make them right, others you can do your own take on the song.

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