Chimes

Chimes are also known as Tubular Bells are musical instruments in the percussion family. Each bell is a metal, typically brass, tube, 30 38 mm (1? 1? inches) in diameter, tuned by altering its length. Chimes are typically hung vertically in chromatic sets of 1? octaves with a range from C5 to F6. Two-octave sets that extend to F4 do exist, but they are extremely heavy and not commonly used. Chimes are typically struck on the top edge of the tube with a plastic-headed hammer. They are commonly used to mimic the sound of heavy and impractical church bells. Chimes are also used in popular music.

Wind chimes or Aeolian chimes are often hollow or solid metal or wooden tubes which are usually hung outside of a building and are intended to be played by the wind, which causes the chimes to strike each other or a metal, wood, or rubber ball which may be hung in the center. Frequency is determined by the length, width, thickness, and material. There are formulas that help predict the proper length to achieve a particular note, though a bit of fine tuning is often needed. Wind chimes are thought to be good luck in Africa and are used in Feng Shui.