Jem Finer is a UK-based artist, musician and composer. Since studying computer science in the 1970s he has worked in a variety of fields, including photography, film, experimental and popular music and installation. His 1000 year long musical composition, Longplayer, represents a convergence of many of his concerns, particularly those relating to systems, long-durational processes and extremes of scale in both time and space.

Between 2003 and 2005 he was artist in residence in the astrophysics department of Oxford University, making a number of works including two sculptural observatories, Landscope and The Centre of the Universe. During a year-long residency at the ICIA (University of Bath, 2011-2012), he developed Mobile Sinfonia, an indeterminate musical composition scored for mobile phones and propagated globally through the free distribution of specially composed ringtones.

Recent work, focusing on his interest in long-term sustainability and the reconfiguring of older technologies, includes Spiegelei, a 360-degree spherical camera obscura, Slowplayer, a 3 r.p.m. sound system andSupercomputer, a sculptural machine composing minimal musical scores.