If you, by any chance, look for Ubuntu at Wikipedia, as results you will see things referring to an ethical concept in philosophy, popular Linux distribution and a municipality in the Pixley ka Seme District Municipality of the Northern Cape province of South Africa.
Ubuntu is also the name of an album of a Canadian progressive metal quintet working under the name Kälter. I am not really sure if anything I wrote in the introductory paragraph actually refers to this Ubuntu (perhaps the band members use this Linux distribution on their personal computers?), but the album cover art suggest that there are some close relations with the whole ethical concept.
Anyway, this album was released in 2012 and is comprised of eight numbers of “unusual” (read: innovative) prog metal. Employing classical elements and mixing them with avantgarde, with black metal parts structurizing the album’s backbone, Kälter’s Ubuntu inhales badly needed refreshment to the rehabilitating progressive metal scene.
Recommended if you like: Opeth, Ihsahn, Emperor, Enslaved, Unexpect, to name but a few.