There is more than one artist with this name. If the artist is unknown only to you, don't use Anonymous and instead fix your tags. 1. Any artist whose name historically unknown, but whose music survives, usually from the early periods of music. 2. Anonymous, based in Indianapolis, Indiana, and created in the late 1970s. Led by Ron Matelic (ex- Sir Winston & the Commons), Anonymous released one album, Inside the Shadow, featuring West-Coast-style rock influenced by Jefferson Airplane and Quicksilver Messenger Service.