Chester, Pennsylvania, to spend more time with Pandel, Haack focused on children's music almost exclusively, writing music for Scholastic Corporation like "The Witches' Vacation" and "Clifford the Small Red Puppy." He also released Funky Doodle and Ebenezer Electric (an electronic version of Charles Dickens' A Christmas Carol) in 1976, but by the late 1970s, his prolific output slowed. Two works, 1978's Haackula and the following year's Electric Lucifer Book II, were never released. From Party Machine to Death (1977-1988) Haackula, Haack's darkest album, struck out into dark, yet playful territory. It seems to have inspired Haack's final landmark work, 1981's Bite. The albums share several song titles and lyrics tone different from Haack's usually idealistic style. Though Bite is harsher than his other works, it features his innovative, educational touch: A thorough primer on electronics and synthesizers makes up a large portion of the liner notes, and Haack adds a new collaborator for this album, 13-year-old vocalist Ed Harvey. Haack's failing health slowed Dimension 5's musical output in the early 1980s, but Nelson and Pandel kept the label alive by publishing songbooks, like Fun to Sing and The World's Best Funny Songs, and re-released selected older albums as cassettes which are still available today. In 1982, Haack recorded his swan song, a proto hip-hop collaboration with Def Jam's Russell Simmons, entitled "Party Machine". Haack died in 1988 from heart failure, but his label and commitment to making creative children's music survives. While Dimension 5's later musical releases — mostly singalong albums featuring Nelson — may lack the iconoclastic spark of the early records, Nelson and Pandel's continued work reveals the depth of their friendship with Haack, a distinctive and pioneering electronic musician. Musical Inventions Mid 1950s: Peopleodian - an analog synthesizer ran on a 9 volt battery and used to play tones and pitches on people. Different versions of the device included 'M' and the Dermatron Mid 1960s: Mr C - an analog synthesizer in the form of a robot and programmed to play music for live audiences 1967: The Musical Computer - a home-built digital/analog synthesizer and digital sampler encased in a suitcase which used sensors and skin touch to trigger lights and sounds, named by Fred Rogers 1968: Farad - a motion-controlled vocoder, named after Michael Faraday Documentaries Haack: The King of Techno is a documentary film about Bruce Haack by Philip Anagnos. It was released in 2004