Answer:
Yes, the relationship between Consonance and Dissonance is constant since ages.
Explanation:
In music, consonance and dissonance are categories of successive and simultaneous sounds. In one hand, Consonance is connected with sweetness, acceptability and pleasantness, while Dissonance is related with harshness and unpleasantness. But for years together they defined each other by mutual exclusion.
As Hindemith has rightly stressed, "<em>The two concepts have never been completely explained, and for a thousand years the definitions have varied, but they are together and constant</em>".
