"High fidelity recording preserves full dynamic range..." Well, I guess that excludes most of the brickwall limited stuff that passes for music these days then.
This vinyl of the Tchaikovsky BSO Munch recording is the RCA Victor Red Seal LM-2043 of 1956. As mentioned being recorded in stereo, it reached a vinyl stereo release on the budget Victrola label as the VICS-1197
Most 33 1/3 RPM Long Play records WERE made of vinyl with some injection molded using poly styrene. The original 33 1/3 RPM longer play records were introduced by RCA in 1931. These were made of shellac, just as the 78's were.
You can see the two U50 microphone stand on each side of the stage. Richard Mohr and Leslie Chase, being producer and recording engineer respectively. AMPEX 300 two track portables doing the capture on tape. They were recording in stereo 3 years before the stereo LP. Mono signal for the mono lease was captured on one of the Ampex recorders.
And much more brittle not being of the more flexible vinyl. Also they were cut and played in a 'hill and dale' motion needing a thicker material. Vinyl was cut in a sidewise 'wavy' motion requiring a finer, more precise stylus in the playback. Players of both LPs and 78s had two different stylus carriers on the pickup arm marked as such so you needed to switch over to the correct stylus for the type of record. Playing an LP with the coarser 78 stylus would cause premature wear on the record.
I had to laugh at the "preserve the dynamic range of the original sound", back when compression was used sparingly and only to give the sound more lifelike recreation, now, boost and limit everything is the standard of modern pop and rock bands, compress it as tight as possible, realistic recreation be darned!
Sure but in this video, they are recording a symphonic orchestra. Classical is essentially treated the same way today. As true as possible to the original performance.
Pop records: When rock aka western swing music came on the scene, they were heavily compressed and limited. And EQ'd with a haystack at 3K to make it sound louder. However, classical music was also fiddled with, dropping the low frequencies so longer compositions would fit on an LP.
In the first film and also here they mentioned an archive where the recordings were stored. Are these still extant? When did they stop adding to these archives? Where are those recordings? Who takes care of them? Who owns them?
The record jacket shown is a mock up, because of the emphasis in the video of Romeo and Juliet. The jacket shown makes no reference to side B (Francesca da Rimini).
"Swiftly spinning magnetic tape". Hm, a rather incorrect analogy. Maybe, "swiftly spooling magnetic tape"? Ah well, close enough... Pretty neat video, thanks for posting.