Mantovani and his Radio Orchestra play 'A Violin In Vienna'.
Titles read: "Now Pathetone presents a - Musical Interlude By MANTOVANI AND HIS FAMOUS RADIO ORCHESTRA! Singers Stella Roberta and Jack Plant".
London, probably Pathe Studio.
Various shots of Mantovani and his Orchestra playing a Viennese tune. Glamorous chanteuse Stella Roberta sings along while sitting at a table with a glass of wine (as if sitting in a Viennese cafe). The song is 'A Violin In Vienna'. She is joined by Jack Plant (with his glass of wine) who sings part of the song.
Note: Denis Gifford book lists the orchestra here as Mantovani's Tipica Orchestra.