Many call Dennis Brain the greatest horn player to ever live. The mark that he left on the music world has no signs of fading any time soon.
Effortless is a word I probably use too often to describe the greatest players in the world. But Dennis Brain is possibly the best example I know of from the brass world.
His phrasing is natural to the point that he truly sounds like a vocalist without words.
Here is Dennis Brain performing the Beethoven Horn Sonata.