Ghosts I-IV is the seventh major studio release by Nine Inch Nails and was released on March 2, 2008. The album contains 36 instrumental tracks and is the first album from Nine Inch Nails following its announcement that the band had severed its ties with Interscope Records and intended to release future material independently. Initially intended to be a five-track EP, the album is presented in the form of four nine-track instrumental EPs. The tracks do not have names, and are only identified by their track listing, position, and album art. The team behind the project featured Nine Inch Nails front man Trent Reznor, Atticus Ross, and Alan Moulder, with instrumental contributions from Alessandro Cortini, Adrian Belew, and Brian Viglione.