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
Signal instrument tradition of march music stems from the use of signal instruments, mainly metal winds (as the modern bugle and clarion), originally (and still) to pass standardized orders (often at a small tactical level), while percussion and flutes served mainly to march on the beat; especially when a larger force is gathered with ceremony (just drums often do, as in ruffles and flourishes or accompanying formal administration of corporal punishment), both can be combined into a band. Signal instrument A signal instrument is a musical instrument which is not only used for music as such, but also fit to give sound