I took piano lessons for awhile, about twenty years ago, but, as an adult playing the chord method for so long, I didn't have enough time in my life to be halfway competent. I had already been taught basic theory, and remembered enough left hand bass clef to play simple songs, but that was it. Many of us have heard many times that it is easier to switch to keyboard from piano than vice versa. How true.
Excuse me for hijacking the thread, but on the subject of music theory for those that are interested, a guy named Rick Beato has a youtube channel that may be helpful. Some of the stuff is basic but he has a little something for everyone I believe. He is a former producer and plays both guitar and keys.