Here's an anthology of some of Kenton's well-known songs in the era. Pitched as a history of his professional career, it takes him about forty seconds of screne time to go from a piano player scrounging jobs to leading his own band. His first gig was at age 16 (he was born in 1911) at a local diner for 50 cents a night plus tips. His formed his own band in 1940, and led it into the 1970s, more as an arranger than a piano player.
Wjem o was growing up, he was famous for his big bands with big arrangements: "The Wall of Sound". As one critic put it, Kenton's band didn't swing, it blasted.
There's a lot of loud blasting going on in this short, but it's brpetty good 1940s swing.