1969. Pearlman was considered an important figure in the development of both alternative and commercial American rock music, and for his intervention in British punk. He was drafted by record company CBS to produce Give 'Em Enough Rope, The Clash's second album, which gave the band their largest audience to date, and also produced many of the tracks that were compiled in "Black Market Clash". He was described as the "Hunter Thompson of rock, a gonzo producer of searing intellect and vast vision.", in the Billboard Producer Directory. Pearlman also worked as a full-time artist manager, managing the careers of Blue Öyster Cult, Black Sabbath (1979–1983), Romeo Void, The Dictators, Shakin' Street, Aldo Nova and others. In the 1980s, he pioneered the mega-tour stadium format of several bands traveling together, sharing promotional costs and production and travel costs, a format persisting today with the Lollapalooza Festival, the Lilith Fair and related tour packages. In 1983, Pearlman leased Studio C in San Francisco's The Automatt Studios from studio owner David Rubinson and dubbed it Time Enough World Enough Studios. After The Automatt closed in 1984, he leased Studio C at Hyde Street Studios from studio owner Dan Alexander. Pearlman ran a recording operation in Studio C as Alpha & Omega Studio from 1986 until 1991. He also used it for his own projects, including those on his short-lived MCA-distributed label Popular Metaphysics, and he also sub-leased it to other producers and artists. In 1989 he took over as president of the alternative record company 415 Records and established a production and distribution deal for the label with MCA Records, before purchasing the company and changing the label's name to Popular Metaphysics. The label was short lived, but it signed a few solid acts and released their records on the MCA label, including Love Club (1990), Manitoba's Wild Kingdom (1990), and World Entertainment War (1991). The 1991 edition of Mark Garvey's Songwriters' Market, published in 1990, carried a listing that read as follows: "*SANDY PEARLMAN, INC., 245 Hyde St., San Francisco CA 94102. (415)885-4999. A&R Director: Natasha V. Record producer, record company (Popular Metaphysics, formerly 415), recording studio (Alpha & Omega Recording, Hyde Street Studios)." In the late 1990s, Pearlman served as the founding vice-president of e-music.com, a subscription store for download-to-own online music and audiobooks that is headquartered in New York City and now owned by Dimensional Associates. eMusic was one