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
Recorder (musical instrument) amount of air required for each instrument, and describes a trill or vibrato called a "vox tremula" in which "a tremulous quality in the breath" is combined with a trilling of the fingers to vary the interval from anything between a major third and a diesis. He is also the first writer to mention the recorder in D5 ("discantus"), which he leaves unnamed. Composer and singer Philibert Jambe de Fer ( 1515 – 1566) was the only French author of the 16th century to write about the recorder, in his "Epitome musical". He complains of the French name for the