Hall's earliest musical influences included alternative rock mainstays such as Radiohead, Green Day, and Nirvana. Beethoven's works remain mainstays of the classical music repertoire. The band's use of 1980s musical mainstays such as keyboard and synthesizer is also notable. Many of the magazine's mainstays began retiring or dying by the 1980s. Farming and ranching provide other important mainstays. Pink Floyd was one of the mainstays of the bootleg industry in the 1970s. These songs became mainstays of the Phish catalog. Indigenous agricultural mainstays varied depending on the geographical area. This slowed domestic production of such agricultural mainstays as beef, rice, and milk. The four mainstays of the economy are agriculture, tourism, offshore financial services, and raising cattle. Yet high technology and entrepreneurship remain mainstays of the San Francisco economy. Logging and farming were mainstays of Minnesota's early economy. Logging and tourism were the economic mainstays of Weaverville for many years. Trade, tourism and finance are the mainstays of the local economy. Cattle herding, cereal growing, and banana cultivation were the economic mainstays of these states.