I p[layed around with upmixing some Sinatra, but the Columbia and Capitol albums were really made for mono, and the stereo versions of most are fake, so faking a fake makes it sound worse. Using Spleeter can pull stuff out, but I just couldn't get decent results. The mono stuff works and should be left that way.
I love nit-picking when the info is solid. That's great to here. I am referring to those "Duo-Phonic" deals which is what I remember.
Thanks for the info!
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