A pitched percussion instrument (also known as a melodic or tuned percussion instrument) is a percussion instrument used to produce musical notes of one or more pitches, as opposed to an unpitched percussion instrument which is used to produce sounds of indefinite pitch.
Pitching of percussion instruments is achieved through a variety of means.
A keyboard percussion instrument, also known as a bar or mallet percussion instrument, is a pitched percussion instrument arranged in the same pattern as a piano keyboard and most often played using mallets. While most keyboard percussion instruments are fully chromatic, keyboard instruments for children, such as ones used in the Orff Schulwerk, may be diatonic or pentatonic.
Despite the name, keyboard instruments such as the celesta and keyboard glockenspiel are not considered keyboard percussion instruments, despite being idiophones, due to the different skillsets required to play them. This is because keyboard percussion instruments do not possess actual keyboards, but simply follow the arrangement of the keyboard.
A carillon (US: /ˈkærəlɒn/ KARR-ə-lon, UK: /kəˈrɪljən/ kə-RIL-yən) is a pitched percussion instrument that is played with a keyboard and consists of at least 23 bells. The bells are cast in bronze, hung in fixed suspension, and tuned in chromatic order so that they can be sounded harmoniously together. They are struck with clappers connected to a keyboard of wooden batons played with the hands and pedals played with the feet. Often housed in bell towers, carillons are usually owned by churches, universities, or municipalities. They can include an automatic system through which the time is announced and simple tunes are played throughout the day.
Carillons come in many designs, weights, sizes, and sounds. They are among the world's heaviest instruments, and the heaviest carillon weighs over 91 metric tons (100 short tons). Most weigh between 4.5 and 15 metric tons (5.0 and 16.5 short tons). To be considered a carillon, a minimum of 23 bells is needed; otherwise, it is called a chime. Standard-sized instruments have about 50, and the world's largest has 77 bells. The appearance of carillons depends on the number and weight of the bells and the tower in which they are housed. They may be found in towers that are free-standing or connected to a building. The bells of a carillon may be directly exposed to the elements or hidden inside the structure of their towers.
Percussion notation is a type of musical notation indicating notes to be played by percussion instruments. As with other forms of musical notation, sounds are represented by symbols which are usually written onto a musical staff (or stave).
Percussion instruments are generally grouped into two categories: pitched and non-pitched. The notation of non-pitched percussion instruments is less standardized, and therefore often includes a key or legend specifying which line or space each individual instrument will be notated on.
A chime (/ˈtʃaɪm/) or chime of bells is a carillon-like instrument, i.e. a pitched percussion instrument consisting of 22 or fewer bells. A Chime is primarily played with a keyboard, but can also be played with an Ellacombe apparatus. A Chime is often automated, in the past with mechanical drums connected to clocks and in the present with electronic action. Bellfounders often did not attempt to tune chime bells to the same precision as carillon bells. A chime of bells is defined as specifically having fewer than 23 bells to distinguish them from the carillon. American chimes usually have one to one and a half diatonic octaves. According to a recent count, there are over 1,300 existing chimes throughout the world. Almost all are in the Netherlands and the United States, with most of the remainder in Western European countries.