Double Sharps in Just Intonation. The mathematics?

Asked by: Jessica Rose

How do you calculate just intonation?

You can find the frequencies of the notes in the rest of the octaves by adding a multiplication or division by 2 in the calculation. For each additional octave upwards or downwards respectively.

How many notes are in just intonation?

To produce a twelve-tone scale, one of them is arbitrarily discarded. The twelve remaining notes are repeated by increasing or decreasing their frequencies by a power of 2 (the size of one or more octaves) to build scales with multiple octaves (such as the keyboard of a piano).

Is Pythagorean tuning the same as just intonation?

Pythagorean tuning provides uniformity but not the chords. Just tuning, based on the simpler ratios of the overtone series, provides the chords but suffers from inequality of intervals. Meantone tuning provides equal intervals but gives rise to several objectionable chords, even in simple music.

Is just intonation Pythagorean?

Pythagorean tuning is a type of just intonation. You don’t quite get simple ratios by stacking P5, but what you get is also decent -> major/minor thirds and sixths are a schisma away from simple ratios, so you get a few good intervals in a 12 notes gamut.

How does just intonation work?

just intonation, in music, system of tuning in which the correct size of all the intervals of the scale is calculated by different additions and subtractions of pure natural thirds and fifths (the intervals that occur between the fourth and fifth, and second and third tones, respectively, of the natural harmonic series

What is 5 limit just intonation?

Five-limit tuning

The 5-limit consists of all just intonation intervals whose numerators and denominators are both products of the primes 2, 3, and 5; these are sometimes called regular numbers. Some examples of 5-limit intervals are 5/4, 6/5, 10/9 and 81/80.

Is just intonation the harmonic series?

It states that just intonation is a method of tuning based on the intervals of the harmonic series. In the West, some of the oldest extant sources that give detailed accounts of rational or integer number ratios in music are the Division of the Canon by Euclid (fl.

What is wrong with just intonation?

An ideal system (for Western people) would be based on the natural harmonic series, because we love how harmonics sound. This kind of tuning system is called just intonation. It sounds lovely! Unfortunately, just intonation makes it impossible to change keys or tune your guitar.

How many cents is 1 octave?


Musical intervals are often expressed in cents, a unit of pitch based upon the equal tempered octave such that one equal tempered semitone is equal to 100 cents. An octave is then 1200¢ and the other equal tempered intervals can be obtained by adding semitones: If f1 = Hz and f2 = Hz then the interval is cents.

Do violinists play in just temperament?

Violinists usually tune their open strings in just fifths (which have an exact 2:3 ratio). Although I have suggested using equal temperament for learning to play in tune with your app, the most important thing is that you try to play exactly in tune, whichever setting you use.

Who discovered just intonation?

Harry Partch was the first such composer. He defined his own scale with 43 pitches to the octave, and invented his own instruments to play it.

What instruments use just intonation?

The modern un-fretted bowed string instruments; the violin, viola, cello and bass, can and do play in just intonation and can modulate to any key center and maintain just intonation. Modern brass instruments without valves, such as the bugle, play in just intonation in one key only.

Why does just intonation sound better?

Our brains tell us that the first interval is more consonant, simply because it requires less effort to process than the second one. Of course, in the real world, things are rarely absolutely perfect and two tones in the ratio of 40001:50001 will be heard as “near enough” to 4:5.

What is the difference between just intonation and equal temperament?

Just Intonation: smooth chords, melody notes that sound out of tune. 2. Equal Temperament – melody notes sound in tune, chords sound rough. One of the best ways to understand the difference Equal Temperament and Just Intonation is to play harmonicas tuned to JI and ET and compare the way they sound.

Do violinists use just intonation?

Use Just Intonation for double stops and for chords in string quartets. Pianos are tuned in equal temperament. Violinists should only adjust to piano pitches if both instruments are playing the same pitch for a long duration. Intonation is one of your most powerful musical tools.

Do orchestras play in just intonation?

Yes, the strings of the strings section will be tuned to ET 5ths, usually, and generally the whole orchestra will play with a modern pitch reference (e.g., A 440). Also, world class musicians will often have a good enough pitch sense that they will play notes very close to equal temperament, if not right on.

Why is intonation so hard on violin?

The correct intonation on a violin is so difficult because the player has to place his or her fingers on a fretless fingerboard. In order to learn where the correct spots are and to develop muscle memory, the player has to listen carefully to the sound of the violin and adjust the placement of their fingers.