Track A is on Channel1 mixer. Track has a high sound that you want delayed. You need to send Track A to Ableton, trough a filter/32EQ Band VSTi or something like that, to filter all the other sounds away, then you need to send this trough tape-delay and send the resulting sound to Channel2 on your mixer. When you think off it; eqing the sh!t out of the tracks and sending it trough tapedelay and controlling this; needs lots of practice. And lots of speed and timing or else you get other sounds in your delay-send.
