Immerseel noted he was positively surprised by the high quality of Strauss' instrumentation, which Brahms and others admired. His recording goes back to the original scores, which are differentvfrom what modern orchestras use.

Looks like a bootleg? For the sake of being a Mal completist I’ll probably get it. Two of my musical heroes but I feel the chosen compositions are a sign of disappointment to me personally. I would love to hear Rivers playing ‘out’ on Mals dark chordings. 

Benny Goodman “Complete 1937 Madhattan Room Broadcasts Volume” Viper’s Nest cd From this box set: