sackbut

{{Infobox instrument | name = Sackbut | image = MIMEd 6111. Tenor sackbut in A, Monk model.png | image_capt = Renaissance-era tenor sackbut (modern replica) | background = brass | classification = | hornbostel_sachs = 423.22 | hornbostel_sachs_desc = Sliding aerophone sounded by lip vibration | developed = Earliest form of the trombone used in the Renaissance and Baroque periods (mid 15th to early 18th centuries) | range = \layout { ragged-right = ##t \context { \Score \omit BarNumber } } { \new Staff \with { \remove "Time_signature_engraver" }

\clef bass \key c \major \cadenzaOn e,1 \glissando \clef tenor bes'1 } Range of the tenor sackbut | related = | builders = | musicians = | articles = }} thumb|Left to right: replica alto, tenor and bass sackbuts, in Museu de la Música de Barcelona. thumb|Four sackbuts: two tenors, left & middle; alto, top; bass, right. A sackbut is an early form of the trombone used during the Renaissance and Baroque eras. A sackbut has the characteristic telescopic slide of a trombone, used to vary the length of the tube to change pitch, but is distinct from later trombones by its smaller, more cylindrically-proportioned bore, and its less-flared bell. Unlike the earlier slide trumpet from which it evolved, the sackbut possesses a U-shaped slide with two parallel sliding tubes, rather than just one.