This tone may be within dissonance range of one of the primaries.
The sound is jarring and harsh, and we term it a " dissonance " or " discord."
The frequency of beats giving maximum dissonance rises as we rise higher in the musical scale, and falls as we descend.
But we have to remember that with strings, pipes and instruments generally the fundamental tone is accompanied by overtones, called also " upper partials," and beating within the dissonance range may occur between these overtones.
But his plays - with the exception of The Witch of Edmonton, in which he doubtless had a prominent share - too often disturb the mind like a bad drel n which ends as an unsolved dissonance; and this defect is a sup
In the same year appeared Evanson's work entitled The Dissonance of the four generally received Evangelists, to which replies were published by Priestley and David Simpson (1793).
The first symptom of dissonance was a proclamation by the commander of the Upper Danube division, Arthur Gdrgei, from his camp at Vacz (Jan.
If the pitch is raised still further the dissonance lessens, and when there are about 130 beats per second the interval is consonant.
If all tones were pure, dissonance at this part of the scale would not occur if the interval were more than a third.
The very marked dissonance of the major seventh is thus explained.
When two sources emit only pure tones we might expect that we should have no dissonance when, as in the major seventh, the beat frequency is greater than the range of harshness.
This beat theory of dissonance was first put forward by Joseph Sauveur (1653-1716) in 1700.
The two tones are now dissonant, and, as we have seen, about the middle of the scale the maximum dissonance is when there are between 30 and 40 beats per second.