Introduction to the performance of the musical composition "Clamavit Ihesus magna voce: Lost Voices of the Passion" (composed by Nils Holger Petersen) at a concert on 17 June 2011 arranged for the international conference "Notarum figura". This composition written for the occasion takes it point of departure in intranscribable notations to settings of Jesus' words from Matthew 27: 46 from tenth-century evangeliaries. It was performed at the concert by two doctoral students from University of Cambridge: Christopher Hodkinson and Matthew Ward.