I got to chat with Johnson afterward, and learned that Sibelius and Finale are considered much easier software to use for entering my own music than Apple's Logic, which I have been learning to use.
Update: Nov. 21
Here's a story about "Sleeping Giants" and Beethoven Awareness Month on WQXR New York, by Nadia Sirota, "Timothy Andres: Bringing the virtuoso composer-performance tradition into the 21st Century", link here. Who else besides Timo can make entire recitals of new music and draw a big crowd and make it work, even in the middle of enormous storms and fireworks aoutside. Welcome to timocracy.