Randy Greif, born on September 25, 1957, is an American noise music composer whose work includes a blend of electronic music, musique concrète, and spoken word. Greif began producing experimental electronic pieces in the mid-1970s and founded the DIY label Swinging Axe Productions in 1983. Early cassette releases include Lost Contact (1983) and the collaborative cassette Easy Green Proof (1985), recorded with writer Alva Svoboda. Greif's first album for another label, Bacteria and Gravity (1987), appeared on the RRR label and featured tribal rhythms and unconventional sound sources. Between 1990 and 1992, Greif released the six-hour series Alice in Wonderland on the Staalplaat label. This was followed by The Barnacles Inside (1994) and a collaboration with Dan Burke of Illusion of Safety that yielded the album Fragment 56 (1995). Soleilmoon released Verdi's Requiem in 1997 and War of the World in 2001. Subsequent releases under the recording alias Shadowbug 4 include the albums Tiny Voices of Love and Fear (1999), We Are Beginning Our Descent (2001), and A Thousand Hits Later (2007). Greif also wrote and directed the feature film The Three Trials (2006). Streaming album releases include In the Court of Ubu Roi (2020) and A Shift in the Frequency (2023). Tribe Tapes began re-releasing Greif's early cassettes on CD in 2024.