In the public domain, at least in parts of the world.

Musopen

There ought to be but one large art warehouse in the world, to which the artist could carry his art-works and from which he could carry away whatever he needed... - Beethoven

https://musopen.org/

Collection

Licensing Public domain

Connections

Genre Classical

Grouping Music

Funding Kickstarterhttps://www.kickstarter.com/projects/Musopen/set-chopin-free, https://www.kickstarter.com/projects/Musopen/record-and-release-free-music-without-copyrights