Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Partikel II -  Partikel II is a collaborative album by the noise musicians Merzbow and Nordvargr. The artists used each other's music as soundsources for their own works. It is the second part of the Partikel trilogy.
Album