Conversation

musescore-downloader (via Github):

"Download sheet music [...] from musescore.com for free, no login or Musescore Pro required"

Note: This is not about pirating, but (among other things) about providing access to public domain and Creative Commons music hidden behind a paywall and subscription enforcement. See repository for more info.

https://github.com/Xmader/musescore-downloader

There are Chrome/Firefox extensions and a user.js approach available.