A bell tree is a percussion instrument

Percussion instrument

A percussion instrument is any object which produces a sound when hit with an implement or when it is shaken, rubbed, scraped, or otherwise acted upon in a way that sets the object into vibration...

, consisting of vertically nested inverted metal

Metal

A metal , is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable and shiny, that is they reflect most of incident light...

 bowls. The bowls, placed on a vertical rod, are arranged in order of pitch

Pitch (music)

Pitch is an auditory perceptual property that allows the ordering of sounds on a frequency-related scale.Pitches are compared as "higher" and "lower" in the sense associated with musical melodies,...

 (inexactly). The number of bowls can vary between approximately 14 and 28. An effective glissando

Glissando

In music, a glissando is a glide from one pitch to another. It is an Italianized musical term derived from the French glisser, to glide. In some contexts it is distinguished from the continuous portamento...

 is done by sliding a triangle

Triangle (instrument)

The triangle is an idiophone type of musical instrument in the percussion family. It is a bar of metal, usually steel but sometimes other metals like beryllium copper, bent into a triangle shape. The instrument is usually held by a loop of some form of thread or wire at the top curve...

 beater, a glockenspiel

Glockenspiel

A glockenspiel is a percussion instrument composed of a set of tuned keys arranged in the fashion of the keyboard of a piano. In this way, it is similar to the xylophone; however, the xylophone's bars are made of wood, while the glockenspiel's are metal plates or tubes, and making it a metallophone...

 mallet

Drum stick

A percussion mallet is an object used to beat drums and other percussion instruments. Some specialized mallets are called beaters, drumsticks.Note: See Rute .-Drum sticks:...

, or a xylophone

Xylophone

The xylophone is a musical instrument in the percussion family that consists of wooden bars struck by mallets...

 mallet down the tree. When a glissando is played, the inexactness of the order of pitch is unnoticeable; the glissando just sounds fuller. Random or relatively pitched notes can also be played on a bell tree.

The bell tree is a great object making "magic

Magic (paranormal)

Magic is the claimed art of manipulating aspects of reality either by supernatural means or through knowledge of occult laws unknown to science. It is in contrast to science, in that science does not accept anything not subject to either direct or indirect observation, and subject to logical...

al" sound effect

Sound effect

For the album by The Jam, see Sound Affects.Sound effects or audio effects are artificially created or enhanced sounds, or sound processes used to emphasize artistic or other content of films, television shows, live performance, animation, video games, music, or other media...

s for media.