Shota
Παλαιό Μέλος
English translation of Chrysanthos' Theoretikon done by Katy Romanou has been published by Axion Estin foundation and is available for purchase from
https://www.axionestin.org/store/proddetail.php?prod=Book
https://www.axionestin.org/store/proddetail.php?prod=Book