# Relationship between the frequency of a note above middle

### What are the frequencies of musical notes like G in k-hertz? A or A4 which has a frequency of Hz, is the musical note of A above middle C and In the American Standards Association recommended that the A above middle C be tuned to Hz. This In continental Europe the frequency of A4 commonly varies between Hz and Hz. In the period instrument. The relation between physical and perceptual properties of sound are shown Hz corresponds (roughly) to the musical note B4, or the B above middle C. Originally Answered: What is the relation between pitch and frequency? less than 20 Hz) is known as an Infrasound and any sound with a frequency above the audible range of hearing (i.e., When speaking of sound waves, very low frequency sounds are very deep, low notes. Middle A (pitch=a', key #49) is hz.

Both of these pitch standards define what are called 'equal tempered chromatic scales. That is, the ratio between the frequencies of any two successive pitches in either standard is 1.

There is a third Scientific or Just Scale that is based on C4 having a frequency of Hz, but this is not used for musical purposes. There are twelve half-tones black and white keys on a pianoor steps, in an octave. Since the pitch frequency of each successive step is related to the previous pitch by the twelfth root of 2, the twelfth step above a given pitch is exactly twice the initial pitch. The frequency of intermediate notes, or pitches, can be found simply by multiplying dividing a given starting pitch by as many factors of the twelfth root of 2 as there are steps up to down to the desired pitch. Likewise, in the International standard, G5 has a frequency of G 5 is another factor of the 12th root of 2 above these, or Note when counting steps that there is a single half-tone step between B and C, and E and F.

These pitch scales are referred to as 'equal tempered' or 'well tempered. For example, G and C are a so-called fifth apart. The frequencies of notes that are a 'perfect' fifth apart are in the ratio of 1. This slight reduction flattening in frequency is referred to as 'tempering.

A piano keyboard is set up in octaves. Each octave has thirteen notes, with the thirteenth being the beginning of the next octave as well.

### Fundamental frequencies of Notes in Western Music | Auditory Neuroscience

The interval between each two successive notes is called a half-step. Each of these characteristics can be associated with something that we hear in a sound wave. The most noticeable aspect of a wave is that it repeats in time. Whether it is a vibrating string on a violin or waves breaking at the shore, something is repeating. Each repetition is called an oscillation: An oscillation is one segment of a repetitive motion. Pitch, Frequency, Period Musical notes or tones have a pitch. The pitch of a particular note is often given as a number.

Now, the question is what? If you pluck a violin string tuned to Middle A, the string will vibrate or oscillate back and forth and will have a certain pitch. The technical term for pitch is frequency and the frequency referred to here is how many times in one second the string oscillates back and forth: Physicists do not like to keep write expressions out like this all of the time, so a shorthand has been developed.

Each way of writing this gets progressively more compact. Since frequency always refers to some number of oscillations, we do not have to keep writing "oscillations".

## What are the frequencies of music notes?

Hz is an abbreviation of the unit Hertz, named after the physicists Heinrich Hertz. Once we understand the meaning of a pitch or frequency of Hz, we can ask a related question: Another way to look at this is the following: Again, we have used some shorthand notation. If the period is rather small, we don't want to keep writing lots of zeros after the decimal point, so we use scientific notation, instead.

This is especially convenient for sound waves, as the periods of sound waves are generally around 1 to msec. Consider the Earth going around the sun.

Is this motion repetitive? What would an oscillation correspond to? What is the period and frequency of the motion? What is the period and frequency of the wave on the following graph? Repetitive sounds can be formed in different ways. The most common, of course, is from a musical instrument.