Celtic metal-undergenren er kendt for at indeholde sangtekster baseret på [[keltisk mytologi]].<ref name="Chad"/> [[Kelterne]]s historie er en anden populær kilde til sangtekster for celtic metal-bands som Cruachan,<ref name="Cru Imp"/> Eluveitie,<ref name="Lords of Elu1"/> Primordial<ref>{{cite web |author=Michelle, Alina |title=Interview with A. Nemtheanga of Primordial |url=http://www.photomistress.com/interviews/primordial.php |publisher=Photomistress.com |access-date=20. marts 2008 |archive-date=24. februar 2008 |archive-url=https://web.archive.org/web/20080224052920/http://www.photomistress.com/interviews/primordial.php |url-status=dead }}</ref> og [[Mael Mórdha]].<ref>{{cite web |author=Ritsios, Elias |title=Interview with Roibéard Ó Bogail of Mael Mórdha |url=http://www.metal-invader.com/interviews/mael_mordha-2006-03-03/interview.php |publisher=Metal-invader.com |access-date=20. marts 2008 |archive-date= 2. december 2008 |archive-url=https://web.archive.org/web/20081202173906/http://www.metal-invader.com/interviews/mael_mordha-2006-03-03/interview.php |url-status=dead }}</ref> [[Nordisk mytologi]] kan findes i sangtekterne hos blandt andre Falkenbach,<ref name="Dead Falken"/> Týr,<ref name="Lords of Tyr"/> Finntroll<ref>{{cite web |author=Lahtinen, Luxi |title=Interview with Katla and Somnium of Finntroll |publisher=Metal-rules.com |url=http://www.metal-rules.com/interviews/Finntroll.htm |access-date=20. marts 2008 |archive-date= 3. marts 2008 |archive-url=https://web.archive.org/web/20080303081736/http://www.metal-rules.com/interviews/Finntroll.htm |url-status=live }}</ref> og [[Mithotyn]].<ref name="Neon Falcon">{{cite web |author=George Call |title=Interview with Stefan Weinerhall of Falconer |publisher=Neonblonde.com |url=http://www.neonblonde.com/Interview13.htm |access-date=20. marts 2008 |archive-date= 3. december 2008 |archive-url=https://web.archive.org/web/20081203151646/http://www.neonblonde.com/Interview13.htm |url-status=dead }}</ref> Skyforger er kendt for at bruge sangtekster som både er baseret på deres lettiske kulturs historie og mytologi.<ref name="Modern Sky"/> Melechesh synger også om myter og historie, og får inspiration til deres mellemøstlige lyd fra Oldtidens [[Mesopotamien]].<ref name="McKay"/> Andre bands som har brugt historie i deres sange er f.eks. Falconer,<ref name="Neon Falcon"/> [[Arafel (band)|Arafel]]<ref>{{cite web |author=Eck, Markus |title=Interview with Felius of Arafel |publisher=Metalmessage.de |url=http://www.metalmessage.de/Interviews/arafel-engl.htm |access-date=20. marts 2008 |archive-date= 9. april 2008 |archive-url=https://web.archive.org/web/20080409072408/http://www.metalmessage.de/Interviews/arafel-engl.htm |url-status=live }}</ref> og [[Slechtvalk]].<ref>{{cite web |author=Eck, Markus |title=Interview with Shamgar of Slechtvalk |url=http://metalmessage.net/Interviews/slechtvalk-engl.htm |publisher=Metalmessage.de |access-date=20. marts 2008 |archive-date= 7. marts 2016 |archive-url=https://web.archive.org/web/20160307185210/http://metalmessage.net/interviews/slechtvalk-engl.htm |url-status=live }}</ref>
Musik