tracker

noun

1. 1

   Agent noun of track; one who, or that which, tracks or pursues, as a man or dog that follows game.

2. 2

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

3. 3

   A type of computer software for composing music by aligning samples on parallel timelines.

4. 4

   A musician who writes music in a tracker.

5. 5

   A computer program that monitors something.

6. 6

   A tracker mortgage.