Listening to the Disc 6 of the Clifford Jordan Mosaic, which is the equivalent of Glass Bead Game Lp I noticed taht it was 64 minutes long. I don't ever remember another Lp that long. IIRC one of the 2 releases from Mile's '64 Philharmonic Hall concert was about 30 minutes a side but I can't think of any other Lps that had 60 minutes of music. Were there many and didn't the length cause sound problems?