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
Regal Musical Instrument Company Regal Musical Instrument Company The Regal Musical Instrument Company was established in 1908 in Chicago. By the 1930s, they were one of the largest manufacturers of musical instruments in the world. Regal specialised in: Regal was heavily involved in the production of resonator fretted instruments from their first development until 1941, manufacturing components and bodies for both the National String Instrument Corporation and the Dobro Manufacturing Company and producing whole instruments which sold under many brand names including "Dobro". The bodies of their Laminated bellied guitars were particularly suited to resonator conversion. Production of resonator guitars ceased in 1941, and