Davis later left teaching, arranging and conducting an Omaha, Nebraska production of Hair before accepting a job writing advertising jingles. With co-worker Bill Fries, he created the enormously popular C.W. McCall character, later the figure behind the chart-topping hit "Convoy; " as the McCall craze went into high gear, however, Davis returned to the classical adaptations he'd first composed while a teacher, and soon entered the studio to begin recording what he dubbed "18th century classical rock" -- classical music performed on electric bass and synthesizers. He titled the resulting album Fresh Aire, and when no label would touch it, he founded his own company, American Gramaphone, in 1974, creating a fictitious band named Mannheim Steamroller to better promote the project. Davis initially marketed Fresh Aire to stereo showrooms, where his state-of-the-art sound proved ideal for demonstrating home stereo equipment; the LP became a smash hit among audiophiles, and a series of popular Fresh Aire sequels followed in the years to come.
In 1984, Davis issued Mannheim Steamroller Christmas, which shocked onlookers by selling over five million copies on the strength of a Top 40 Adult Contemporary rendition of "Deck the Halls." It was followed four years later by A Fresh Aire Christmas, another unqualified hit. The environment informed 1986's Saving the Wildlife, the soundtrack to a PBS special, and was followed three years later by Yellowstone: The Music of Nature, which raised over half a million dollars for the National Parks Service. Although in the early 1990s Davis began recording under his own name for the first time, he also maintained the Mannheim Steamroller guise for a series of seasonal recordings, among them 1995's Christmas in the Aire, 1997's Christmas Live and 1998's Christmas Angel: A Family Story. 1999's two-disc 25 Years celebrated Mannheim Steamroller's silver anniversary. Continuing with their Fresh Aire series, volume eight was released in mid-2000. The albums Romantic Melodies and American Spirit came in 2003. ~ Jason Ankeny, All Music Guide