Transposing instruments

thumb|alt=A man plays the Victorian Christmas carol "Good King Wenceslas" on a carillon's wooden keyboard with his fists, during this carillon's annual Christmas recitals during the 2016 holiday season.|A carillonist plays the 56-bell carillon of the Plummer Building, [[Rochester, Minnesota, US]] thumb|alt=A steel structure containing 56 hanging bells of various sizes and topped with a roof spire and a cross|The 56-bell carillon of Saint Joseph's Oratory, [[Montreal, Quebec, Canada]]

The celesta () or celeste (), also called a bell-piano, is a struck idiophone operated by a keyboard. It looks similar to an upright piano (four- or five-octave), albeit with smaller keys and a much smaller cabinet, or a large wooden music box (three-octave). The keys connect to hammers that strike a graduated set of metal (usually steel) plates or bars suspended over wooden resonators. Four- or five-octave models usually have a damper pedal that sustains or damps the sound. The three-octave instruments do not have a pedal because of their small "table-top" design. One of the best-known works

instrument for which music is conventionally written transposed to a different pitch