You could indeed describe it like that. And Stravinsky is closer to me than the expressionists. But I think that you should look at it in a wider perpective. Of course, there are many graduations in between. It is in the neighbourhood of your description, even though I would prefer to speak of trans-subjectivity.
Objectivity is all too quickly synonymous to detachment, rationalism or absolute truth.
A typical dualistic approach to the concepts. The way in which that occurs can differ greatly. They're not so far apart as might seem. Gregorian chant is born from a spiritual world view, which I also share. Everything from the past that one happens upon as musician or composer is a reconstruction seen from one's own time, filtered by one's own consciousness.