To take a virtual lesson — you need a computer or tablet with built in camera & mic, the Skype, Zoom, or Apple FaceTime app, and a high speed internet connection. Smart phones can work, but the larger screen of a computer or iPad is much better to see what’s being demonstrated. There is no commitment for multiple lessons. You book one lesson at a time. He’s located in Minneapolis, central time zone of the US (same as Chicago). You pay after the lesson.
“Gordy Knudtson — The Pomatus of Drums“. This 2019 article from Not So Modern Drummer contains some testimonials about Gordy’s teaching methods from a few of his students, as well as the author.