Good points mrgeeze. I've been using BIAB for backing tracks for nearly 20 years. I now keep it very simple. Wav files on a tablet played through my Boze L1. I know there's been discussion in the past on whether or not to use the ear phone jack on a tablet, but I've had no problems. Also, I agree about keeping the arrangements simple. With all the wonderful Real Tracks at our disposal it's tempting to create complex arrangements, but as the years have gone by, I now tend to rely mostly on bass, drums or percussion, and usually one of two guitars (usually acoustic) at the most. For me this tends to work well with my instrumental electric guitar, as it strikes a nice balance and doesn't sound too cluttered.