Jan Savitt was an emigre from what is now part of Ukraine, trained as a classical violinist, and played in the orchestra of the great Leopold Stokowski. But he left that long-hair jive behind and put together a swing band in the 1930s known as the Top Hatters. They had their own radio show and broadcast from the Philadelphia NBC affiliate four times a week.
Here the boys perform a cover of Jimmy Lunceford's "Blues in the Groove". Johnny Austin provides the trumpet solo in what I can only characterize as a style that is simultaneously laid back and frenetic.