Anyone knows the "studio fidelity" font?

ITC Blair Bold  Suggested by donshottype 
Sweet Sans Bold  Suggested by donshottype 
Sackers Heavy Gothic  Suggested by donshottype 

From the era when LP covers were designed using photo type for the lettering.
Often customized by stretching, thickening etc.
Filmotype Giant is almost a match if it is made a little thicker.

Considering the tiny size of the letters on the image, Sweet Sans Bold is a match

Considering the tiny size of the letters on the image, Sackers Heavy Gothic is also a match

ITC Blair Bold is a design that dates from 1900 and there is a good chance that this is the one used for the LP cover.