Keyboard programming is a hobby of mine, and I’ve used MainStage on all of my own shows plus assisted on several Broadway and Off-Broadway shows. Some highlights include A Chorus Line at City Center, Mamma Mia at the Engeman, and Fun Home at The Public.
Favorite keyboard is the Yamaha S90ES even though it’s 15 years old.
Nord Stage and the Kawaii MP series are the best new options.
Preferred DAW is Logic.