Soundies 1940s - Will Bradley Orchestra, Billie Joyce and Roberta Hollywood (vocals)

Soundies are three-minute American musical films, produced between 1940 and 1947, each displaying a song, dance, and/or band or orchestral number. Produced professionally on 35 mm black-and-white film, like theatrical motion pictures, they were printed on the more portable and economical 16 mm film.
The films were shown in a coin-operated "movie jukebox" named the Panoram, manufactured by the Mills Novelty Company of Chicago. Each Panoram housed a 16 mm RCA film projector, with eight Soundies films threaded in an endless-loop arrangement. A system of mirrors flashed the image from the lower half of the cabinet onto a front-facing screen in the top half. Each film cost 10 cents to play, with no choice of song; the patron saw whatever film was next in the queue. Panorams could be found in public amusement centers, nightclubs, taverns, restaurants, and factory lounges, and the films were changed weekly. The completed Soundies were generally made available within a few weeks of their filming, by the Soundies Distributing Corporation of America.
Several production companies filmed the Soundies shorts in New York City, Hollywood, and Chicago: James Roosevelt's Globe Productions (1940-41), Cinemasters (1940-41), Minoco Productions (owned by Mills Novelty, 1941-43), RCM Productions (1941-46), LOL Productions (1943), Glamourettes (1943), Filmcraft Productions (1943-46), and Alexander Productions (1946) led by William D. Alexander). The performers recorded the music in advance, and mimed to the soundtrack during filming.
The movie-jukebox idea developed several imitations and variations of the technical design; the most successful of these imitators were the Techniprocess company (managed by Rudy Vallee) and the Featurettes company, which used original novelty songs and usually unknown talent (17-year-old Gwen Verdon appears in a couple of the Featurettes as "Gwen Verdun"). As Soundies quickly gained most of the market for jukebox films, the other companies disbanded, and some sold their films to the Soundies concern.
(Source Wikipedia 2021)

[@eogg25]

I was too young in the 40's for this but my Uncle took me to see Frank Sinatra at the Chicago theater in around 46 I did not even know who he was but the girls were screaming and in the later 50's got to see the big bands at the Aragon Ballroom and Melody Mill.

[@joostkiefte7683]

The band sans Ray McKinley but still with Doc Goldberg on the bass, so this is late 1941?