Sackbut as ballet "Don Juan" (1761). Some chamber music in this period includes trombone in an obligato role with voice, and also as a concerto instrument with string orchestra. Composers include the likes of Leopold Mozart, Georg Christoph Wagenseil, Johann Albrechtsberger, Michael Haydn and Johann Ernst Eberlin. For works for trombone post-1800, please see trombone. Many groups specializing in period music make frequent and prominent use of the sackbut. External links: Plenty of recordings of the authentic sackbut are now available from the groups such as Concerto Palatino, HMSC, Gabrieli Consort and the Toulouse Sacqueboutiers. For a closer examination of the
Musical Instrument Museum (Brussels) instruments are shown in the basement, traditional instruments on the ground floor, the development of the modern orchestral instruments on the first floor, and keyboard and stringed instruments on the second floor. Visitors are given infrared headphones in order to listen to almost 200 musical extracts of the instruments on display. Information is provided in French and Dutch, though not in English. Among the notable pieces of the collection are the famous Rottenburgh Alto recorder, instruments invented by Adolphe Sax, a unique set of giant Chinese stone chimes, and the only existing copy of the luthéal, an instrument used by