Thanks Lars. Cubasis is an amazing tool! Much cheaper than Ableton 10 Standard, which is what I had been using. Apple iPad recognizes almost any audio interface. I just tested it with the audio interface in my Soundcraft UI24R and the iPad sees it without a problem. I am bypassing the Uphoria and just playing fully stereo backing tracks with click and vocal triggers. I can independently mix each track in each song. It is amazing!
Not sure if I was totally clear on my steps, but I did the best I could.
Again, thanks!