its time. The Shofar, made from a ram horn and the Hatzotzeroth, made of metal, are both mentioned in the Bible. They were said to have been played in Solomon's Temple around 3,000 years ago. They were said to be used to blow down the walls of Jericho. They are still used on certain religious days. The Salpinx was a straight trumpet long, made of bone or bronze. Salpinx contests were a part of the original Olympic Games. The Moche people of ancient Peru depicted trumpets in their art going back to AD 300. The earliest trumpets were signaling instruments used for military or religious purposes, rather than music in the modern sense; and the modern bugle continues this signaling tradition. Improvements to instrument design and metal making in the late Middle Ages and Renaissance led to an increased usefulness of the trumpet as a musical instrument. The natural trumpets of this era consisted of a single coiled tube without valves and therefore could only produce the notes of a single overtone series. Changing keys required the player to change crooks of the instrument. The development of the upper, "clarino" register by specialist trumpeters—notably Cesare Bendinelli—would lend itself well to the Baroque era, also known as the "Golden Age of the natural trumpet." During this period, a vast body of music was written for virtuoso trumpeters. The art was revived in the mid-20th century and natural trumpet playing is again a thriving art around the world. Many modern players in Germany and the UK who perform Baroque music use a version of the natural trumpet fitted with three or four vent holes to aid in correcting out-of-tune notes in the harmonic series. The melody-dominated homophony of the classical and romantic periods relegated the trumpet to a secondary role by most major composers owing to the limitations of the natural trumpet. Berlioz wrote in 1844: Notwithstanding the real loftiness and distinguished nature of its quality of tone, there are few instruments that have been more degraded (than the trumpet). Down to Beethoven and Weber, every composer – not excepting Mozart – persisted in confining it to the unworthy function of filling up, or in causing it to sound two or three commonplace rhythmical formulae. Construction The trumpet is constructed of brass tubing bent twice into a rounded oblong shape. As with all brass instruments, sound is produced by blowing air through