24bit, 88.2kHz - not exactly in a key, but I would say it's mostly in Bb maj with the exception of a Cmaj chord which comes around quite often. This is one single take of 5 musicians all playing at the same time in one room. The only overdubs were the BG vox and the Moog solo. No click, just pure unadulterated performance which breathes a lot. All audio, all analog, all live.