Karita Mattila sings Ah! Perfido with Prague Philharmonia 13/4/2018 Karita Mattila sings Beethoven’s Ah! Perfido with the Prague Philharmonia under Paul McCreesh on 21 April, celebrating the life of Jiří Bělohlávek. Ian Stones Associate Director, VOICE +44 (0)77 7153 6584 ian.stones@harrisonparrott.co.uk News Karita Mattila debuts with the Iceland Symphony Orchestra News Eleven HarrisonParrott Vocal Artists nominated for International Opera Awards News HarrisonParrott Artists feature in Finnish Independence concerts Share