Jhills mentioned Walnut. Now this is an interesting species if you are someone who is going to go the felt, rubber (type) and cork route. You can get some interesting tones out of Black or Chocolate Walnut mixed with the softer (more absorbent) materials. When I did my ranking a few years ago Walnut came in right after the softer woods and I ranked it higher musically than Maple (for electronics). So that's cool Jim brought this up.
good ears :)
Michael Green