Untuned sounds, for example, the speaking voice • definite pitch: · 质数（prime number）又称素数，有无限个。一个大于1的自然数，除了1和它本身外，不能被其他自然数整除，换句话说就是该数除了1和它本身以外不再有其他的因数；否则称为合数。 我们可以规律记忆法记住它们：首先记住2和3，而2和3两个质数的乘积为6. 100以内的质数，一般都在6的倍数前、后的位置. Tuned sounds, for example, the singing voice. Definite and indefinite. • definite and indefinite pitch • pitch direction and contour • pitch patterns • pitch range and register. Some pitches cannot be clearly identified and named, and these are called indefinite pitches. · understanding the difference between definite and indefinite pitch is essential for any musician. Musicians call these indefinite pitches and write the rhythms with ‘x’ note heads, because the sound does not have a regularly oscillating frequency. Students should understand and apply the following (where appropriate to the musical context): A sound or note of indefinite pitch is one that a listener finds impossible or relatively difficult to identify as to pitch. How do you describe pitch in music? If a prepared piano piece calls for you to tap the fallboard as percussion while playing a melody, you are combining indefinite and definite pitches. Important aspects include high, low, higher and lower pitches, direction of pitch movement, melody, harmony, indefinite and. Odd number是奇数，也就是不能被2整除的数；prime number是质数，也就是只能被1和自身整除的数。 质数（除了2以外）必定是奇数；但是奇数则不一定是质数。 In other words, it is possible and often easy to roughly discern the relative pitches of two sounds of indefinite pitch, but any given sound of indefinite pitch does not neatly correspond to a given definite pitch. · pitches that can be clearly identified and named are called definite pitches. Instruments like piano, guitar, violin, and trumpet produce definite pitches. · pitched percussion instruments produce definite pitches or specific musical notes when struck, such as xylophones or marimbas. • indefinite pitch: 什么是prime number质数（prime number）又称素数，有无限个。一个大于1的自然数，除了1和它本身外，不能被其他自然数整除，换句话说就是该数除了1和它本身以外不再有其他的因数；否则称为合数。根据算术基本定理， Many percussion instruments such as snare drums and cymbals produce indefinite pitches. · another way we can classify pitch is to put them into two groups: 素数 又叫 质数 （prime number），有无限个。质数定义为在大于1的 自然数 中，除了1和它本身以外不再有其他因数。 质数具有许多独特的性质： （1）质数p的 约数 只有两个：1和p。 （2）初等数学基本定理：任一大于1的自然数，要么本身是质数，要么可以分解为几个质数之积，且这种分解是唯一的. 质数（prime number）又称素数，有无限个。质数定义为在大于1的自然数中，除了1和它本身以外不再有其他因数。 合数指自然数中除了能被1和本身整除外，还能被其他数（0除外）整除的数。与之相对的是质数，而1既不属于质数也不属于合数。最小的合数是4。其中，完全数与相亲数是以它 … It allows us to blend melodies with the rhythmic complexity that indefinite pitches provide, creating a richer musical experience. Sounds with indefinite pitch do not have harmonic spectra or have altered harmonic spectra—a characteristic known as inharmonicity. Definite pitch in music refers to sounds with a clear and identifiable pitch or tone, and you can recognize them as particular notes in the musical scale. Indefinite pitch, on the other hand, refers to sounds that do not have a clear or identifiable pitch. Unpitched percussion instruments, on the other hand, produce. Pitch pitch refers to the relative highness and lowness of sounds. Definite pitches are made by the guitar, piano, or saxophone, for example.
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Untuned sounds, for example, the speaking voice • definite pitch: · 质数（prime number）又称素数，有无限个。一个大于1的自然数，除了1和它本身外，不能被其他自然数整除，换句话说就是该数除了1和它本身以外不再有其他的因数；否则称为合数。 我们可以规律记忆法记住它们：首先记住2和3，而2和3两个质数的乘积为6. 100以内的质数，一般都在6的倍数前、后的位置. Tuned sounds, for example, the singing voice. Definite and indefinite....
