"(The System of) Dr. Tarr and Professor Fether" is a 1976 single by The Alan Parsons Project which first appeared on their album Tales of Mystery and Imagination: Edgar Allan Poe. The single reached number 37 on the US Billboard Hot 100 and number 62 in Canada. Like the other songs on the album, it is based on a story by American author Edgar Allan Poe, in this case "The System of Doctor Tarr and Professor Fether" (1845); the song was written by Alan Parsons and Eric Woolfson, and was originally recorded at Abbey Road Studios, London in September 1975. The 1987 reissue featured a "cathedral organ".