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
Recorder (musical instrument) amount of air required for each instrument, and describes a trill or vibrato called a "vox tremula" in which "a tremulous quality in the breath" is combined with a trilling of the fingers to vary the interval from anything between a major third and a diesis. He is also the first writer to mention the recorder in D5 ("discantus"), which he leaves unnamed. Composer and singer Philibert Jambe de Fer ( 1515 – 1566) was the only French author of the 16th century to write about the recorder, in his "Epitome musical". He complains of the French name for the