Opus was an
American magazine that featured critical reviews of classical music recordings. Based in
Harrisburg, Pennsylvania, the magazine ran from November/December 1984 to March/April 1988, publishing 21 issues.
James R. Oestreich was its editor-in-chief. Historical Times, Inc., of
Harrisburg was its owner. Warren Bertram Syer (1923–2007), who had published High Fidelity for 30 years, was then the president of Historical Times.