It's official

[Ashy]

In those days a record was just that. The musicians had to perform it and it was recorded how they played it. None of this computer enhancement. they didn't have a computer.

[klondike]

Depends how far you go back. There was a lot of fiddling done with tapes and mixing desks. The days of scratching it all on a master in one take preceded most of the stuff I recall from my youth. There was fully electronic music by the 70s and effects pedals on guitars earlier still.