Earlier in this thread, @ghdprentice mentioned “The Great Courses” as a retirement activity. It was a great suggestion and I heartily concur. There are a few lectures in the catalog specific to listening to and understanding music by Dr. Greenberg. I have several, but most enjoyed a course he did on Mahler which really helped me to understand and appreciate his music (which can still be hard for me). I did these courses a good number of years ago - might be time for me to listen to them again as I retire in 2 months,
Best to all,