A hornwork is an element of the trace italienne system of fortification. It consists of a pair of demi-bastions with a curtain wall connecting them and with two long sides directed upon the faces of the bastions, or ravelins of the inner fortifications, so as to be defended by them.

The hornwork was used to extend the fortified area in a particular direction to prevent the enemy occupying an area of high ground or simply strengthen the overall fortifications in the expected direction of attack. A crownwork serves a similar purpose, but unlike a hornwork, it contains full bastion.

Horn may refer to:

Work may refer to:

Jim Horn is an American saxophonist and woodwind player. He was born in Los Angeles, and after replacing saxophonist Steve Douglas in 1959, he toured with member Duane Eddy for five years, playing sax and flute on the road, and in the recording studio. Along with Bobby Keys and Jim Price he became one of the most in-demand horn session players of the 1970s and 1980s.

Horn played on solo albums by three members of the Beatles, and worked on a session with Paul McCartney, who was producing a track for Duane Eddy's 1987 album project. Jim Horn also toured with John Denver on and off from late 1978 to early 1993. He also played with Denver in concert occasionally before and after the 1995 wildlife concert.

Horn also played flute and saxophone on The Beach Boys' album Pet Sounds.

DJ Pierre is the stage name of Nathaniel Pierre Jones, a Chicago born DJ and performer of house music. He helped to develop the house music subgenre of Acid House, as member of Phuture, whose 1987 E.P. Acid Tracks, which has been called the "first Acid House recording." Allmusic.com calls Jones a "crucial DJ and the production wizard partly responsible for the development of Chicago acid-house." Jones' first single "Generate Power," "became standard fare for scores of producers during the next few years." Philippe Renaud, a journalist for La Presse in Montreal, states that the term "Acid house" was "coined in Chicago in 1987 to describe the sound of the Roland 303 bass machine, which made its first significant recording appearance on Phuture's Acid Trax (DJ Pierre) in that year."

Jones has recorded under the names DJ Pierre, Phuture, Phuture Phantasy Club, Pierre's Pfantasy Club, and Photon Inc. He formed the group Phuture with his friends Spanky (Earl Smith Jr. –founder/technical producer) and Herb J (Herbert R Jackson Jr. - keyboards). During the mid-1980s, the trio began using the "squelch" sound that became common in Acid House recordings after their initial experiments with a Roland TB-303 bass line synthesizer produced these "squelch" sounds. Living in the Chicago area, they were exposed to many house artists, such as Hot Mix 5 artists (Farley "Jackmaster" Funk, Ralphi "The Razz" Rosario, Kenny "Jammin" Jason, Mickey "Mixin" Oliver and Scott "Smokin" Seals) who were producing many tapes and vinyl recordings. Frankie Knuckles was DJing and the Warehouse club (where House Music may have derived its name).