On Music for a Viennese Salon, Philadelphia-based period-instrument ensemble Night Music re-creates an afternoon of music making from October 1801 at the Austrian capital's Palais Arnstein, with a flamboyant Quintet for flute and strings by Joseph Kraus, a duo by Carl Ditters von Dittersdorf for the unusual combination of viola and double bass, and a chamber arrangement � by the impresario Johann Peter Salomon utilising the same instrumentation as the Kraus Quintet � of perhaps the most notorious of symphonic surprises.utterly beguiling � resplendent � flickers of genius - Gramophone