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
Music technology made metal strings possible. Bowed strings were used as well. The bowed lyra of the Byzantine Empire was the first recorded European bowed string instrument. The Persian geographer Ibn Khurradadhbih of the 9th century (d. 911) cited the Byzantine lyra as a bowed instrument equivalent to the Arab rabāb and typical instrument of the Byzantines along with the "urghun" (organ), "shilyani" (probably a type of harp or lyre) and the "salandj" (probably a bagpipe). The hurdy-gurdy was a mechanical violin using a rosined wooden wheel attached to a crank to "bow" its strings. Instruments without sound boxes like the jaw