Sor’s Souvenir d’amitié op. 46 was first published in Paris in about 1831. The title means “Memento of friendship”. It is a long work dedicated to the child prodigy Giulio Regondi, who was only eight years old at the time and who later produced splendid virtuoso music for the guitar.
You can hear Sor’s Souvenir d’amitié op. 46 played here by Sondre Høymer.
This edition comes from the new 2019 second edition of Sor’s New Complete Works for Guitar edited by Brian Jeffery. The Introduction and Index to the entire series can be seen here on this site.