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
Keith Hill (musical instrument maker) Keith Hill (musical instrument maker) Keith Richard Hill (born 8 May 1948) is a prize winning American maker of musical instruments He has conducted research into the acoustical technology employed by musical instrument makers from 1550–1850, and used this knowledge to create hundreds of harpsichords, clavichords and other instruments. Hill was born in China to missionary parents, and raised in the Philippines. He moved to the United States permanently in 1962. He attended music school at Michigan State University, studying piano and carillon with Wendell Westcott, organ with Corliss Arnold, and piano tuning and historical temperaments with Owen Jorgensen. He