Foolishness: A song based on Sec 79 of The Book of the Lover and the Beloved by 13th C philosopher Ramon Llull.
The Island: An amalgam of two poems (Of an Island and The Ruine of the Island) from Poems and Fancies by the 17th C philosopher Margaret Cavendish.
New Angel: Based on the ninth of the theses from 20th C philosopher Walter Benjamin's "On the Concept of History" AKA "Theses on the Philosophy of History".
Small Country: A song based on a passage toward the end of the Tao Te Ching, credited to the philosopher Laozi.
I Dreamed I Saw St Augustine: A cover of a song by Bob Dylan from his 1967 album John Welsey Harding.
Oh Redness of Blood: A setting of 'O rubor sanguinis' by 12th C philosopher Hildegard von Bingen.
Love (III) is a poem by 17th C 'metaphysical poet' George Herbert. Its primary significance for Cantat Ergo Sumus lies in the role that it played in the evolution of the thinking of 20th C philosopher Simone Weil