Titles read: 'Pathetone - Presents Another Famous Radio Dance Orchestra - Felix Mendelssohn And His Band (With Paula Green)'.
London, probably Pathe Studio.
Various shots of Felix Mendelssohn and his orchestra playing 'I Double Dare You'. Singer Paula Green comes on to sing before a microphone. The tune could be classed as jazz, but 'British' in style - it doesn't quite swing (in this cataloguer's humble opinion!).
Duplicate exists in Turns Can 18 - see separate record for details.