The trumpet parts that required this distinctiveness were known by the term clarino and this in turn came to apply to the musicians themselves. It is probable that the term clarinet may stem from the diminutive edition of the 'clarion' or 'clarino' and it has been advised that clarino gamers may have helped themselves out by playing especially difficult passages on these newly constructed "mock trumpets". However, the clarinet in A, just a semitone lower, is commonly utilized in orchestral music. The clarinet has proved to be an extremely bendy device, equally at home in the classical repertoire as in live performance bands, army bands, marching bands, klezmer, and jazz. It would seem though that its real roots are to be found amongst one of the most a variety of names for trumpets used around the Renaissance and Baroque eras. Clarion, clarin and the Italian clarino are all derived from the medieval term claro which noted an early kind of trumpet. This is probably the origin of the Italian clarinetto, itself a diminutive of clarino, and as a result of the European equivalents similar to clarinette in French or the German Klarinette. According to Johann Gottfried Walther, writing in 1732, the reason behind the name is that "it sounded from remote not unlike a trumpet". The English form clarinet is found as early as 1733, and the now archaic clarionet appears from 1784 until the early years of the 20th century. The cylindrical bore is primarily guilty for the clarinet's distinctive timbre, which varies between its three main registers, referred to as the chalumeau, clarion, and altissimo. The tone exceptional can vary greatly with the clarinetist, music, device, mouthpiece, and reed.