I knew the name but none of his work before a few weeks ago. Then I saw the Dead & Company show at MSG on Halloween. Oh my, what a talent!! I absolutely loved what Trey did for the Fare Thee Well shows. But I found I enjoyed John Mayer even more. The ease of playing and unhurried way he lets melodies build and go where they want is amazing. I think he plays more like Jerry then Trey did. Not to mention the vocals, not that Phil let Trey sing much. I thought the Althea with John Mayer singing lead was simply spectacular!

Not the best recording but here is that Althea
https://youtu.be/KhG3C6japNo