God of War (2018 video game) and languages from various Northern European folk traditions." He also wanted the score to be huge and varied, "full of peaks and valleys, tiny incantations and gigantic set pieces." The main Kratos theme in particular features low orchestral instruments, Icelandic choir, deep male vocals, powerful female vocals (in particular Faroese singer Eivør Pálsdóttir), folk percussion, and Nordic stringed instruments, such as the nyckelharpa and hurdy gurdy. The track "Witch of the Woods" uses a renaissance and baroque instrument called a viola da gamba, which is an ancestor of the modern cello. The Stranger's theme, found in the track "Deliverance", uses
Hurdy-gurdy Is Made), known through a much later copy, but its authenticity is very doubtful. Another 10th-century treatise thought to have mentioned an instrument like a hurdy-gurdy is an Arabic musical compendium written by Al Zirikli. One of the earliest visual depictions of the organistrum is from the twelfth-century "Pórtico da Gloria" (Portal of Glory) on the cathedral at Santiago de Compostela, Galicia, Spain: it has a carving of two musicians playing an organistrum. Later on, the "organistrum" was made smaller to let a single player both turn the crank and work the keys. The "solo organistrum" was known from Spain