Sackbut Sackbut A sackbut is a type of trombone from the Renaissance and Baroque eras, characterised by a telescopic slide that is used to vary the length of the tube to change pitch. Unlike the earlier slide trumpet from which it evolved, the sackbut possesses a U-shaped slide, with two parallel sliding tubes, which allows for playing scales in a lower range. Records of the term "trombone" predates the term "sackbut" by two decades, and evidence for the German term "Posaune" is even older. "Sackbut", originally a French term, was used in England until the instrument fell into disuse in 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