Life before ?Kariokee?, the Tascam 424mkII with pre-recorded tracks, all tracks blazing out of the line level separate phono outs, tracks 1 & 2 ( guitars and keys ) y cabled into a guitar rig stage right, tracks 3 & 4 ( bass and drums ) y cabled into a bass rig stage left , channels 5 & 6 for live instrument and vocal, monitor out - to a small 80w studio monitor amp & speakers for vox reference, 1/4 in. instrument cable y adapted to stereo phone - the Aiwa home stereo for mains fed by the aux 2 send. It's like riding a charriot being hauled by 4 different beast! Only multi-taskers should try this