
Epistola Guidonis Michaeli Monacho de ignoto cantu directa =
by Guido d'Arezzo, Guido, Mich Hermesdorff, Michael Hermesdorff
Writing a summary for young readers…
For young readers
Book data: Open Library

by Guido d'Arezzo, Guido, Mich Hermesdorff, Michael Hermesdorff
Book data: Open Library