Accordionist Toralf Tollefsen (Tollefson) plays 'Invitation to the Waltz'.
Titles read: "Pathetone - presents - ANOTHER POPULAR RADIO & VARIETY ARTIST - TOLLEFSEN AND HIS MUSIC".
London, probably Pathe Studio.
Various shots of Toralf Tollefsen (Tollefson?), playing the accordion in the studio. Shots of ballet dancers are superimposed over and intercut with Tollefsen as he plays a lively tune. According to paperwork the music is 'Invitation to the Waltz'.