PP-What I meant is simply that at different times and in different places, what is dissonant and what is consonant is different--

At one time, the major third interval was regarded as dissonant. by the same token, the minor second, which by some reckoning, would be the most dissonant sound possible-- is commmonly used, not only in Balkan vocal music, but also in a Major Seventh Chord, which is used often in contemporary and popular music--In fact, a lot of folkies regard the major seventh sound as being too sweet--seems to me we had a discussion thread where this point came up not that long ago--