Instalace v OS Chrome(book)

MuseScore will not work natively on Chrome OS but there are some workaround solutions.

Via Crouton: Involves installing a Linux based operating system which runs in parallel with Chrome OS, and then installing MuseScore on Linux.
Via software-on-demand service such as Rollapp: By just visiting this website, you can run MuseScore in the browser, but you can only start scores from scratch and only save them to your online MuseScore account through the menu File → Save Online..., and sound and playback does not work.