Thus, these choreographed pyrotechnical arrangements are referred to as 'pyro-musicals'. Pyrotechnical competitions involving fireworks are held in many countries. It can be produced by smoke grenades, or by various other pyrotechnical devices. His next victim, a 65-year-old woman, had her abdomen ruptured with a weak pyrotechnical device. Keaton spent weeks working on the script and preparing for elaborate pyrotechnical shots. The live performance is often accompanied by lasers, pyrotechnical effects and film screens. All fire/pyrotechnical elements were cut from the rally. Lighting designer and pyrotechnical Paul Arvidson mocked up a fire in the building. Ruggieri bomb disposal expert (pyrotechnical) and Ducros-Vahine (food industry). Each summer, several pyrotechnical companies from different countries present a 30-minute-long pyromusical show.