Tolkien metal is a sub-genre of black metal music, influenced by the work of Tolkien. It is more atmospheric and ambient than original black metal, and the lyrics are about Tolkien's work. The band Summoning is the most notable Tolkien metal band, while Isengard has influenced many.
Although their genre is not black metal, bands like Blind Guardian, Battlelore and Rivendell can be described as Tolkien metal because of their lyrics. However, the name was specifically created for Summoning and its kind.