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There may be any number of beats in a measure but the most common by far are multiples of 2 or 3 (i.e., a top number of 2, 3, 4, or 6). Likewise, any note length can be used to represent a beat, but a quarter note (indicated by a bottom number of 4) or eighth note (bottom number of 8) are by far the most common.
The clarinet family is a woodwind instrument family of various sizes and types of clarinets, including the common soprano clarinet in B♭ and A, bass clarinet, and sopranino E♭ clarinet. Clarinets that aren't the standard B♭ or A clarinets are sometimes known as harmony clarinets.
A semitone is thus made of two steps, and three steps make a three-quarter tone or neutral second, half of a minor third. The 8-TET scale is composed of three-quarter tones. Four steps make a whole tone. Quarter tones and intervals close to them also occur in a number of other equally tempered tuning systems.
The time signature typically consists of two numbers, with one of the most common being 4 4. The top "4" indicates that there are four beats per measure (also called bar). The bottom "4" indicates that each of those beats are quarter notes. Measures divide the piece into groups of beats, and the time signatures specify those groupings. 4
The main body of most clarinets has an upper joint, whose mechanism is mostly operated by the left hand, and a lower joint, mostly operated by the right hand. [4] Some clarinets have a one-piece body. [4] The modern soprano clarinet has numerous tone holes—seven are covered with the fingertips and the rest are operated using a set of 17 keys. [4]
A quarter tone clarinet is an experimental clarinet designed to play music using quarter tone intervals. Around 1900, Dr. Richard H. Stein, a Berlin musicologist made the first quarter-tone clarinet, which was soon abandoned. [1] [2] Using special fingerings, quarter tones may be produced by a skilled player on a conventional clarinet. [3]
The Boehm system for the clarinet is a system of clarinet keywork, developed between 1839 and 1843 by Hyacinthe Klosé and Auguste Buffet jeune.The name is somewhat deceptive; the system was inspired by Theobald Boehm's system for the flute, but necessarily differs from it, since the clarinet overblows at the twelfth rather than the flute's octave.
The invention of the alto clarinet has been attributed to Iwan Müller and to Heinrich Grenser, [2] and to both working together. [3] Müller was performing on an alto clarinet in F by 1809, one with sixteen keys at a time when soprano clarinets generally had no more than 10–12 keys; Müller's revolutionary thirteen-key soprano clarinet was developed soon after. [3]