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
Instrument Schedule often considered the "master" sheet. The master electrician uses the information contained in the instrument schedule along with the light plot to direct the hanging of the instruments. Typically the instrument schedule is organized first by hanging location. Common hanging locations (or lighting positions) in theater include electrics, apron pipes, front of house positions, booms and ladders. Within each position, instruments are numbered in the order they are located on the pipe. The standard practice is to label instruments from stage left to right (for battens, and top to bottom for booms and ladders, although some lighting designers choose to