As mentioned upthread a little, I am Co-Chair of the Historical Track* at the upcoming virtual AES Convention in October, and was sent a link to this video today. It is an overview of the process behind the recently remastered collection of the Complete Columbia Recordings of Bruno Walter, made by the engineers behind it, Andreas Meyer and Jennifer Nulsen. There is a lot of history in it and a fair amount of technical detail, both musical and restoration. I think that if you are reading here you will enjoy seeing it and will get something out of its half-hour that is out of proportion to the time spent watching. One question for those here: Hulsen says a couple of times that 30th St. had a sound more akin to a scoring stage than a performance space. Can anyone describe the differences for someone not acquainted with those terms except in the most general sense? TIA. *A position I occupy as a very direct result of this thread and the activities around it, for which I am most grateful. It's been real interesting, to say the least.