Vibraphone Vibraphone The vibraphone (also known as the vibraharp or simply the vibes) is a musical instrument in the struck idiophone subfamily of the percussion family. It consists of tuned metal bars, and is usually played by holding two or four soft mallets and striking the bars. A person who plays the vibraphone is called a "vibraphonist" or "vibraharpist". The vibraphone resembles the xylophone, marimba, and glockenspiel, one of the main differences between it and these instruments being that each bar is paired with a resonator tube that has a motor-driven butterfly valve at its upper end. The valves are mounted
Hammer hammers with handles by about 30,000 BCE during the middle of the Paleolithic Stone Age. The addition of a handle gave the user better control abilities and less accidents. <https://langs.co.uk/blog/2017/06/30/the-history-of-the-hammer-from-its-prehistoric-beginnings/>. The hammer became the number one tool. Used for building, food and protection. The hammer's archeological record shows that it may be the oldest tool for which definite evidence exists of its early existence. A traditional hand-held hammer consists of a separate head and a handle, which can be fastened together by means of a special wedge made for the purpose, or by glue, or both. This two-piece design is