Rok, Frogman is referring to the summer that my friend the professional musician lived in my apartment. He never practiced or expressed the desire to practice, not only that, but an organ would not have fitted in my apartment. (he played organ since childhood in church) Since he was playing three gigs a week of hard driving improvisational jazz, he didn't even know what he was going to play, it's for certain there was no need for him to practice.
I drove him to every gig ( still had the infamous duece), and was mesmerized on each set. The intensity of the music (The dynamic range of live organ can never be recorded)
was in stark contrast to him playing with his eyes closed and a sublime look on his face.
As you stated, the "No practice" was a straw-man, it's for certain no one could get to that level of proficiency without practicing. I understand Frogmans wishes and desires in regard to old and new music, but it is what it is, although when it comes to live music, you have to like what you can get; that's your only option.
Enjoy the music.