Here's a feature I've been meaning to start- my favorite individual tracks ever.
Our first entry will be Charles Mingus' Hog Callin' Blues, from the album Oh Yeah. I think Jimmy Knepper said "there's no place to hide in Mingus' band", and this is a good example of that. I don't know if they sketched this out in advance or what, but it sounds like it could've been completely improvised off of Mingus' opening vocal riff. Mingus plays piano on this one, with Doug Watkins on bass. Rahsaan Roland Kirk plays what I call his "chicken" solo. Booker Ervin is also featured.
Here a more verbose writer than I on this tune.