Listening to Singers

Over the past few months I've had several conversations with different people talking about general ways to improve instrumental technique and expression. I've mentioned seeing in a number of books written by the highest level players the advice to listen to singers, as what you're trying to do with your instrument (I guess with the exception of percussion) is to bring to it the unmatched expressive power of the human voice.

Just wanted to make a brief post on this because that info was new to some people, but since I've seen it so many times over the years, thought everyone was aware of it.