Porretti (ca 1720-1783) worked as a cellist in the Capilla Real between 1734 and 1783. He was the father of Joaquina, Boccherini’s second wife.
He seems to have written 24 cello concertos and a work for four cellos mentioned by Padre Antonio Soler.
Naxos recorded a sonata for cello in D found in the collection of scores at the castle of Schönborn-Wiesentheit in Germany.
The sonata has been published by Alejandro Gerri
[Mühlheim] : Garri Editions, ©2004.
A copy is available at the University of Darmstadt
Other sonatas are at the British Museum:
- sonata in A Major
- sonata in G minor
British Museum. Dept. of Manuscripts. ADD 31,528. (microfilm)
Worldcat's entries:
https://www.worldcat.org/search?qt=worl ... 2529format
Ctesibius