Was The Great Gig in the Sky - Pink Floyd, Torry recorded with Varispeed?

This is guesswork.


But it sounds like it.


All Alan Parsons had to do was reducing backing track tape speed (say one semitone?) just before Clare Torry offered to the world her amazing performance.


Today a type II Denon HD6/60 cassette recorded from Linn Sondek LP in the 90s was played back on a Sanyo TRC 2500.


It sounded great. Then out of curiosity it was decided to use the Sanyo speed knob adjustment to reduce speed a bit. Voice sounded more like an ordinary human being.


Then speed knob was back to 0. Out of this world.


Interesting.