Bird - the 1950 quartet version of 'Star Eyes' with Hank Jones, Ray Brown and Buddy Rich. The last 8 bars or so of the alto solo is, I think, one of the most extraordinary and moving things Parker ever did.
Ernie Caceres was a great player and a true individualist on the baritone. Happily his mantle was picked up - for a long time at least, by the British player Johnny Barnes, a member of the Alex Welsh band. I don't know if Johnny is still playing but he's the closest I ever heard to Caceres.