How “Live” Classical Recordings Used to Be Labeled

I recently got the Sviatoslav Richter Complete Album Collection. (, Amazon UK) On 18 discs, this includes his recordings for Columbia Records, notably five recitals from Carnegie Hall in 1960.

I find it quaint the way they labeled “live” performances back then:

Recorded in Actual Performance.

Richter live

I guess this was to distinguish from a non-realistic performance in a studio.