I was able to spend some more time on this today and got it working. I redid the setup steps Oberon provided (great practice for me to do again). This time I added Scalers between the split keygroups and the audio units Voila! Lights and sound.
I will add that the process of creating the key mapping was confusing to me. Oberon's suggestion of mapping the main keygroup by sliding finger along all keys in order worked fine. Doing the same in the split keygroups didn't work.
In the split keygroups, I found I had to hold the key down before it would turn green. On most keys, I had to press it multiple times before it would turn green. (Is this normal?)
Also, I didn't get at first that I was to create only one course at a time, double-tap, then advance the course number. I ended up looking at the mappings of the Factory setup which clued me in.
Also, when viewing the Factory setups, I discovered the course offset array needed to get the standard key pattern - [0.0,4.0,4.0,4.0].
Randy