I was interested in this so did some empirical work-- yes, people consistently prefer mild dissonance over perfect consonance -- at least with combinations of 3

I was interested in this so did some empirical work-- yes, people consistently prefer mild dissonance over perfect consonance -- at least with combinations of 3 sawtooth waves. Perfect consonance sounds colder while very slightly off tune sounds richer. It's an obvious effect (try it with a generator) but would be unrelated to violin playing