Just tried this in Reaper. It's actually much closer to 123.47
Anyway that album, Discovery, is full of funny bits. Track #11 Veridis Quo sounds like "very disco". Turn those two words around, and you got the album's title.
That would be about 160 ppm off, more than I'd expect if the track was recorded digitally and set to 123.45
in verlan, Discovery is pronounced “verydisco”
I’ve listened to this album so many times and cannot believe I’ve never noticed Veridis Quo is literally Very Disco.