Another chapter in the story of Slave Orchestras and Ensembles! I won’t be surprised if we eventually find enslaved people that actually composed for the groups! https://twitter.com/rism_music/status/1320761283646554112

And per my points about formerly colonized countries having their own relationship to Classical Music. This 1783 anthology has 165 pieces: 72 anonymous; 93 have composer attributions--Many of them Spanish and Portuguese.

http://www.rism.info/en/home/newsdetails/article/64/eighteenth-century-music-manuscript-el-libro-sesto-tells-of-colonial-history-in-chile.html

Camilo Brandi Walsen has released an album of music from the anthology:
"Libro Sesto de Maria Antonia Palacios" https://www.youtube.com/playlist?list=OLAK5uy_nM_DJgiYM9QXnB3jq_AMt7ATIP4BlHU9k

And here's a piece in Spanish that seems to claim that Maria Antonia Palacios might have also composed?

"María Antonia, esclava y músico: La traza de un rostro borrado por/para la literatura chilena"
Paulina M. Barrenechea Vergara
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-04622005000100007

If I'm understanding this piece correctly, this was actually a dissertation proposal. The dissertation is "La figuración del negro en la literatura colonial chilena. María Antonia Palacios, esclava y músico: ..." (2007) and am looking for a copy of it! https://twitter.com/Silpayamanant/status/1320915721870807044

Here are the CD liner notes for the release mentioned earlier in this thread.

http://www.musicantiguaenchile.cl/2017/04/notas-para-cd-piezas-para-clavecin-del.html