Noun
A brass wind instrument, like a bass trumpet, so contrived that it can be lengthened or shortened according to the tone required; -- said to be the same as the trombone.
Source: Webster's dictionaryIn 1687, Speer published the first written instruction in sackbut (and several other instruments) playing: Grund-richtiger/kurtz/leicht und noethiger Unterricht der Musicalischen Kunst. Source: Internet
Playing C and F in exactly the same position on a modern orchestra sounds out of tune, but it tunes perfectly well on a sackbut if everyone plays meantone. Source: Internet
Herbert (2006), p. 59. main The sackbut was used extensively across Europe from its appearance in the 15th century to a decline in most places by the mid-late 17th century. Source: Internet
"Many modern musicians prefer to use the word 'sackbut' when referring to the Baroque trombone. Source: Internet
Modern performance Many groups specializing in period music make frequent and prominent use of the sackbut. Source: Internet
Repertoire Before 1600 The sackbut replaced the slide trumpet in the 15th century alta capella wind bands that were common in towns throughout Europe playing courtly dance music. Source: Internet