Yes ok ,humprof. I knew it was something Classical plus .
It was hard to wrap my head around that album's music . Oh and IIRC there isn't a CD-4 or quad indication on the reverse of the box like set ...but nevertheless it is a quad album in CD-4 .
Arista had some stellar artists , but for my tastes , they had only one quad I liked , just barely....Outlaws - Lady In Waiting .
I was disappointed that such big sellers , like The Grateful Dead , Alan Parsons, Patti Smith and Lou Reed were overlooked for quad release.
Mind you the first 3 Lou Reeds are in binaural SBS ., encoding.