I'm looking for recommendations for books, videos, etc. for advanced students to further technique. Are there things like master classes on video or in-depth discussions by piano masters discussing technique and/or specific technical approaches and problem solving when working on specific pieces. I began lessons at 5 and have played all my life - music major and graduated BA but went into a non-musical career field although I continued to accompany and stay active in the musical community. Now that I'm retired, I'm spending up to 4-5 hours a day at the piano and have made incredible strides and am playing pieces I never was able to master earlier in my life (the mental discipline that comes with maturity I guess.) I'd love to find a top-notch teacher/mentor but I doubt if any really good advanced teacher would take on someone my age. I'm concerned that I may still have some bad habits that I'm not aware of, hence my interest in reference materials. I have the Boris Berman "Notes from the Pianist's Bench" which has been really helpful. Have any of the really great teachers from Julliard, Curtis and the like, or any of the great performers written or produced videos?