Sackbut eighteenth century; when it returned, the Italian term "trombone" became dominant. In modern English, an older trombone or its replica is called a sackbut. An older instrument generally differs from modern trombones by its smaller, more cylindrically-proportioned bore, and its less-flared bell. The bell section was more resonant (since it did not contain the tuning slide and was loosely stayed rather than firmly braced to itself). These traits produce a "covered, blended sound which was a timbre particularly effective for working with voices... zincks and crumhorns", as in an alta capella. The revived instrument had changed in specific ways. In
Experimental musical instrument available sizes are played by a small but growing number of professional clarinettists in Canada, the US, Germany and Estonia, with two more sizes under consideration. Starting in 2006, Ice Music Festival celebrates musical instruments made of ice. In 2010, composer Alexis Kirke and technologist Tim Hodgson turned the University of Plymouth's Roland Levinsky Building into a form of musical instrument to be played by the rising sun, as part of Peninsula Arts Contemporary Music Festival. Light sensors were placed across seven floors of the building and fed by radio network into a computer music instrument analogous to a Mellotron.