Allerheiligenlitanei
Theodore also taught sacred music, introduced various texts, knowledge of Eastern saints, and may even have been responsible for the introduction of the Litany of the Saints, a major liturgical innovation, into the West. Some of his thoughts are accessible in the Biblical Commentaries, notes compiled by his students at the Canterbury School. Of immense interest is the text, recently attributed to him, called "Laterculus Malalianus". Overlooked for many years, it was rediscovered in the 1990s, and has since been shown to contain numerous interesting elements reflecting Theodore's trans-Mediterranean formation. A record of the teaching of Theodore and Adrian is preserved in the Leiden Glossary.