One who attends a performance at a theater.
A person employed to follow and monitor a political rival.
In an organ, a light strip of wood connecting (in path) a key and a pallet, to communicate motion by pulling.
A musician who writes music in a tracker.
Server software that coordinates peers in the BitTorrent protocol.
A type of computer software for composing music by aligning notes or samples on parallel timelines.
A tracker mortgage.
A computer program that monitors something.