Guidonian hand
In Medieval music, the Guidonian hand was a mnemonic device used to assist singers in learning to sight-sing. Some form of the device may have been used by Guido of Arezzo, a medieval music theorist who wrote a number of treatises, including one instructing singers in sightreading. The hand occurs in some manuscripts before Guido's time as a tool to find the semitone; it does not have the depicted form until the 12th century. Sigebertus Gemblacensis in 1105–10 did describe Guido using the joints of the hand to aid in teaching his hexachord. The Guidonian hand is closely linked with Guido's new ideas about how to learn music, including the use of hexachords, and the first known Western use of solfege.
Guido von List
Both Goodrick-Clarke and later the religious studies scholar Stefanie von Schnurbein described List as "the pioneer of "völkisch" rune occultism", with the latter adding that "the roots of modern esoteric runology are found in Guido List's visions." In 1984, Thorsson expressed the view that List's impact was such that he was "able to shape the runic theories of German magicians (although not necessarily their "political" ones) from that time to the present day." In 1976, two longstanding activists in the "völkisch" and far-right milieu, Adolf and Sigrun Schleipfer, established the Armanen-Order in order to revive List's ideas, adopting a strong anti-modernist stance and a desire to revive pre-Christian religion. It was through the Armanen-Order that Thorsson, who joined it, learned about List's work. Thorsson then spearheaded "the post-war runic revival", founding an initiatory organisation known as the Rune Gild in 1980. Thorsson was responsible for translating a number of List's works into English, alongside those of other "völkisch" mystics like Siegfried Adolf Kummer. These publications brought awareness of List to an English-speaking readership, with his 1988 translation of List's "The Secret of the Runes" initiating a surge of interest in Ariosophy among the Heathen community of the United States. List's runology also made an appearance in Stephan Grundy's 1990 book "Teutonic Magic".
List's Armanist ideas have been cited as an inspiration for the American Odinist militant David Lane, with Wotansvolk, a group that List was involved in establishing, viewing their own activism as a continuation of that begun by List. List was also of interest to the Heathen Michael Moynihan, who spent time visiting the places in Austria that are associated with List's life.