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
Signal instrument tradition of march music stems from the use of signal instruments, mainly metal winds (as the modern bugle and clarion), originally (and still) to pass standardized orders (often at a small tactical level), while percussion and flutes served mainly to march on the beat; especially when a larger force is gathered with ceremony (just drums often do, as in ruffles and flourishes or accompanying formal administration of corporal punishment), both can be combined into a band. Signal instrument A signal instrument is a musical instrument which is not only used for music as such, but also fit to give sound