Dave Rasmussen began his musical interest in jazz growing up in Las Vegas, where he was exposed to some of the top musicians in the country. The opportunity to see and hear the many touring bands that came through, as well as the show bands at the major hotels, provided a nurturing environment for his musical growth. Attending the University of Denver, he majored in math and minored in music, performing in the school's jazz ensemble which appeared at the Notre Dame college jazz festival. Dave also studied at Berklee College of Music on a scholarship from DownBeat magazine.
Dave began developing his arranging skills in high school and college. At Berklee, he studied with John LoPorta and Everett Longtreth. He also studied arranging with trumpeter Wes Hensel, who wrote for the Les Brown Orchestra.
After a period of time devoted to his career in the information technology field, Dave formed two rehearsal bands in Nashua, NH in the early 1980s. He directed the Dave Rasmussen Jazz Orchestra and the Saxophone Ensemble of New England until 1995 when he moved to Florida. In 1994, the DRJO released the CD album Not So Tenderly (SB-2072) on the Seabreeze Jazz recording label. In Florida, Dave performed with the Altamonte Springs Jazz Ensemble (Florida) and guest artists Bobby Shew, John von Ohlen, The Four Freshman, Bob McCartney and Jamie Davis. He also appeared with the Les Brown Orchestra at Busch Gardens. In 2005, Dave returned to New Hampshire and reformed the bands as the Jazz Factory Orchestra and the Sax Factory, a 9-piece group comprised of the jazz orchestra's saxophone and rhythm sections. In addition, the ensembles now include a the ten-piece DanceTet performing swing music for dancing, and the Boiler Room Sextet, a smaller group for more intimate jazz clubs.