In the 1920s and 30s, Vitaphone (a division of Warner Brothers) made a huge number of musical shorts. However, over the decades, they fell into obscurity and were pretty worthless. Fortunately, in recent years, the films have been restored and, most importantly, the separate audio track (which was made on a recorded disc) has been matched up with many of these films. As a result, several mega-collections have recently been released. Though they are of very, very limited appeal to the average viewer, it's nice to see that someone cares about preserving these for the future--to keep a nice piece of our history.
Like so many of the early Vitaphone musical shorts, the band featured in this one is pretty much forgotten today--though it's a shame, as I found myself enjoying it very much--in particularly their first number (which sounded like the sort of music you'd hear in an older Woody Allen film). Very peppy and heavy on the clarinet--almost like merging klezmer and big band music. For more on Tal Henry, check out the wikipedia page--it's quite interesting.