Over the weekend, I was sitting in my office watching an episode about Beethoven's 3rd ("Eroica") symphony from the excellent PBS series Keeping Score, when Michael Tilson Thomas said something about the symphony that intrigued me.
Few musicians or music scholars would doubt the value of a well-researched, historically-informed scholarly (a.k.a. "historical" or "critical") edition or music score, such as those produced by G. Schirmer, Bärenreiter, A-R Editions, G. Henle Verlag, and others.