It’s nothing to do with Bjork 
          or even Fred Astaire’s old hit. In fact HK Gruber, wild-eyed and genial 
          eccentric of modern Viennese music, didn’t even think up the title of 
          the piece he conducts at Saturday’s Prom. He described his new composition 
          to British TV producer Barrie Gavin who was struck by the long twig-brush 
          solo, ‘evoking someone like Fred Astaire coming out of the coffin and 
          dancing on it in slow motion. Barrie said "Dancing in the dark". 
          I thought his intuition exactly right!’
        
        Gruber, ‘Nali’ to his friends, 
          continues in his characteristically expressive English. ‘It’s horrible! 
          Even Simon [Rattle] said, "This is rather not nice". I said, 
          ja, ja. It’s quite unfriendly.’ He beams with glee.
        
        Rattle commissioned what Nali 
          proudly calls ‘the first fox-trot funeral march’ for the Vienna Philharmonic, 
          with an ear to the rich orchestral sound traditionally associated with 
          Vienna, Prague and Dresden, ‘it’s climax with Mahler, early Schoenberg, 
          early Strauss.’ Nali eagerly went along with Rattle’s request for ‘Wagner 
          tubas and tenor horns’, decoded to use them ‘for fun’, and eventually 
          had a vision of ‘old and rusty instruments dreaming of a fox-trot 50 
          or 60 years ago.’ However offbeat the commission might have seemed to 
          the notoriously conservative Vienna Phil (and its public), the premiere 
          under Sir Simon was a smash hit.
        
        As famous for his extrovert gifts 
          as chanteur, actor and presenter as for composing, Nali’s been no stranger 
          to the Proms since his Cello Concerto was played there in 1991. There 
          followed the world premiere of "Ariel", Neeme Jarvi conducting 
          the BBC SO. ‘I conducted Weill’s "Mahogany" with the BBC Philharmonic 
          in 2000. And I’ve sung at a late-night Prom conducted by Thomas Adès’ 
          – the latter a tribute to Nali’s passionate advocacy of Kurt Weill. 
          Saturday’s band is the BBC Phil again.
        
        Gruber actually likes the Albert 
          Hall acoustic. The space tempts the composer in him to let rip. In "Ariel" 
          I used four horns and three trumpets. This time I used four trumpets 
          and six horns for the first time. I like energetic – I don’t want to 
          say noise…’ But he does. ‘I think in the Albert Hall it will make some 
          impression because of the…noise.’
        
        A joyful noise? He’s solemn. ‘When 
          composing it I thought, God, this is surprisingly serious, shockingly 
          serious. When I found the rhythms going into a fox-trot I thought how 
          one would hear it in a New Orleans funeral. It might say something about 
          things we have lost. I don’t know. I can’t tell you.’ Flip, wry, irreverent, 
          rueful, looking back to past glories and resigned about an unknown future. 
          Very Viennese, this dancing in the dark.
        
        Martin Hoyle