Lucie Skeaping talks to Arni Ingolfsson about one of the most important surviving Icelandic music manuscripts, Melodia or Rask 98, which was written around 1660 by an unknown scribe. It contains 223 songs, more than any other Icelandic collection, and many of them are unique to this source. Ingolfsson also founded the vocal ensemble Carmina, who specialise in Renaissance polyphony. The programme includes some of their recordings of music from Rask 98 and other Icelandic manuscripts. Playlist: Master of Heaven's host Marta Gudrun Halldorsdottir (sop) / Arni Heimir Ingolfsson (director) SMK 56 Track 22 Once I crossed the Rhine Gudmundur Vignir Karlsson (tenor) / Arngeir Heidar Hauksson (lute) / Arni Heimir Ingolfsson (director) SMK 56 Track 4 Our Lord, one living God Carmina Chamber Choir / Arni Heimir Ingolfsson (director) SMK 56 Track 5 Susannah, you felt God's true judgement well Carmina Chamber Choir / Arni Heimir Ingolfsson (director) SMK 56 Track 8 Patience is said to be a plant Johanna Halldorsdottir (alto) / Arni Heimir Ingolfsson (director) SMK 56 Track 6 Gaily it cheers my heart Örn Arnason (tenor) / Hanna Loftsdottir (cello) / Gudrun Oskarsdottir (keyboard) / Arni Heimir Ingolfsson (director) SMK 56 Track 9 The heavens that we scan Gudmundur Vignir Karlsson (tenor) / Halla Steinunn Stefansdottir (violin) / Gudrun Hrund Hardardottir (viola) / Hanna Loftsdottir (cello) / Gudrun Oskarsdottir (keyboard) / Arni Heimir Ingolfsson (director) SMK 56 Track 10 Meliora sunt Hallgrimskirkja Schola Cantorum / Gisli Magnason (tenor) / Arni Heimir Ingolfsson (director) SMK 35 Track 6 Ave regina caelorum Hallgrimskirkja Schola Cantorum / Arni Heimir Ingolfsson (director) SMK 35 Track 2 Heyr pu oss himnuma Hallgrimskirkja Schola Cantorum / Gisli Magnason (tenor) / Arni Heimir Ingolfsson (director) SMK 35 Track13 Mist Porkelsdottir: O Wretch that I am Gisli Magnason (tenor) / Helga Ingolfsdottir (harpsichord) SMK 31 Track 10 Hildigunnur Runarsdottir: God supreme, the three and one Grima Vocal Ensemble SMK 31 Track 5 Mist Porkelsdottir: In thee my spirit takes joy, O God Gudrun Edda Gunnarsdottir (alto) / Helga Ingolfsdottir (harpsichord) SMK 31 Track 11 Hildigunnur Runarsdottir: The New Year Kirstin Erna Blondal (soprano) / Gudrun Edda Gunnarsdottir (alto) / Gisli Magnason (tenor) / Benedikt Ingolfsson (bass) SMK 31 Track 4 Out of the depths Gudmundur Vignir Karlsson (tenor) / Halla Steinunn Stefansdottir (violin) / Gudrun Hrund Hardardottir (viola) / Hanna Loftsdottir (cello) / Arni Heimir Ingolfsson (director) SMK 56 Track 19 Unworthy though I should revere Kirstin Erna Blondal (soprano) / Arngeir Heidar Hauksson (lute) / Arni Heimir Ingolfsson (director) SMK 56 Track 20 O Trinity of blessed Light Carmina Chamber Choir / Arni Heimir Ingolfsson (director) SMK 56 Track 27 We pray, Lord Jesus Christ Gudmundur Vignir Karlsson (tenor) / Skarphedinn Por Hjartarson (tenor) / Orn Arnason (tenor) / Arni Heimir Ingolfsson (director) SMK 56 Track 30 Sing my soul, in merriment Marta Gudrun Halldorsdottir (sop) / Arni Heimir Ingolfsson (director) SMK 56 Track 1 When in the hour of utmost need Johanna Halldorsdottir (alto) / Hanna Loftsdottir (cello) / Gudrun Oskarsdottir (keyboard) / Arni Heimir Ingolfsson (director) SMK 56 Track 26 Blessed is friendship's bond Kirstin Erna Blondal (soprano) / Arngeir Heidar Hauksson (lute) / Arni Heimir Ingolfsson (director) SMK 56 Track 2.