In a FB message from Dr Rainer Lotz last year, a film clip found at the Rick Prelinger Library was stated as showing unknown musicians. This silent film clip was also recently mentioned in the IAJRC Journal in an article by David Drazin. The film primarily shows dancing couples, but we can also see glimpses of the musicians in the background. In the document linked below. you can read about the identification of the musicians.
Sid LeProtti in a silent movie film clip
