Blood Inside is the sixth full-length studio album by Norwegian experimental electronica band Ulver. Produced by Ulver, together with Ronan Chris Murphy, the album was recorded and mixed in early 2004, and issued in June 2005 via Jester Records. The album sees Ulver return to more classically-based arrangements and instrumentation. The coda on "It Is Not Sound" is based on Toccata and Fugue in D Minor by Bach. The lyrics for "Christmas" were adapted from the poem of the same name by Portuguese author Fernando Pessoa, written in 1922. A video clip for "It Is Not Sound" was issued on May 2, 2005, via The End Records’ website, along with audio samples from Blood Inside. Background Ulver's sound progresses here even more than on previous records. The music is influenced by several different genres such as rock, jazz, classical music, industrial music, and electronica. The working title of the album was Utopian Enterprise, then changed to Heart, before the band settled on Blood Inside. Speaking about the evolution of the album, Kristoffer Rygg commented, "Utopian Enterprises is a title we all like and it goes back to Perdition City and some ideas stemming from that period, but as the lyrics took form it did not fit anymore. Then there was the Heart Album. Even we thought that was a bit pretentious. So Jørn and I are walking/talking outside one night trying to figure out what it is all about. Thinking only in key words: heart, blood, red, rose, beauty, violence, body, life, death, ambulance, hospital and so forth. Then it struck us: Blood Inside." "In terms of genre, it is more rock than electronica. Even a bit psychedelic and/or progressive at times. The mood is kind of sanctified and sad. It has a few frivolous moments as well, but as they say, 'even in laughter the heart is sorrowful' (Proverbs 14:13.). I know there are many people who expect some kind of sequel to Perdition City. It's not. It's got a different kind of sensibility. It's also got far too much sound on it to be similar to our film soundtracks, which are quite often based on very simple and transparent kind of themes." "[Blood Inside is] kind of counteracting the 'less is more' trip we've been on lately. Our last proper album Perdition City was so keen on being cinematic that it almost read as an application form to