«A fiddle made famous by Lord of the Rings is in demand in Australia». ABC News (på engelsk). 11. mai 2019. Besøkt 10. mai 2023. «Traditionally used to play Norwegian folk repertoire, the Hardanger fiddle gained international fame when played in the soundtracks of The Lord of the Rings, providing the main voice for the Rohan theme.»
bbc.com
«Lord of the Rings violin to be auctioned». BBC News (på engelsk). 21. november 2022. Besøkt 10. mai 2023. «Lord of the Rings composer Howard Shore asked Mr Crehan to play a Norwegian Hardanger violin, now nicknamed the Rohan Fiddle, because of its "plaintive and haunting" sound.»
Kåsa, O. (2021). Hardingbratsj; Ei utviding av hardingfelekonseptet (masteroppgave, Universitetet i Sør-Øst Norge). https://hdl.handle.net/11250/2771044