Musescore on Chromebook?

Hi,

I just bought a Samsung Chromebook Pro, and I'm trying to download the Musescore software to write music. It's not working though, and I don't understand all this Linux, Ubundu, and other stuff that I've heard I might need to deal with in order to use musescore on my Chromebook. Anyone know how to tell me in simple terms what to do???

Thanks!