[thaumasiotes]

> They seem to have succeeded in getting it removed from the Chrome web store, due to its name violating MuseScore's trademark.

That can't be the reason, since the name "musescore-downloader" doesn't violate MuseScore's trademark. If you have a trademark, there is no prohibition on me using the mark to refer to you. Doing that is the whole point of your trademark.

[skybrian]

But would it cause user confusion over whether the software comes from the same organization as MuseScore itself? Saying it’s just a reference doesn’t seem like it would get you off the hook that easily?

But in this case the maintainers of the Chrome Web Store get to decide. If they think it’s too close, it’s too close.