Bill was a man of many different sounds. This is something some of his fans seem to be unaware of. I was listening to "Blues and the Abstract Truth", which is an album by Oliver Nelson, and I heard this beautiful piano. I guessed "Sonny Clark", but no it was Bill Evans. While the music was beautiful and it fit perfectly, it didn't sound like Bill Evans.
When Bill was a sideman, he had the ability to get so deep into the leaders music, that we only heard the leaders music enhanced by Bill's piano. Bill always played what was most appropriate "at that moment". This required a degree of musicianship that few people can even conceive.
On Miles, "The 58 Sessions", the first tune is "On Green Dolphin Street". This version has the most incredibly beautiful piano intro I have ever heard on that tune. This time he sounds like "Bill Evans". Sometimes Bill Evans sound is the one that is most appropriate even when he is a sideman.
Bill has a "signature sound" that only a poet could describe, and I'm not a poet. While most of us have the ability to hear, most of us do not have the ability to listen. I believe Bill's fans are the truest "jazz aficionados" because, like Bill; they have the ability to listen.