\Track"er\, n.
1. One who, or that which, tracks or pursues, as a man or dog
   that follows game.

         And of the trackers of the deer Scarce half the
         lessening pack was near.              --Sir W.
                                               Scott.

2. (Mus.) In the organ, a light strip of wood connecting (in
   path) a key and a pallet, to communicate motion by
   pulling.