Pitched percussion means that the instrument that you're playing will be able to play specific pitches or notes, like a C or an F sharp or a B flat. You will need to know how to read music on the staff and then be able to match what the music says to the bars on the instrument that you play.
When you start playing pitched percussion, you'll probably start out on a Bell Kit, which will look something like this:
There are two basic types of pitched percussion; mallet instruments and timpani. Click below to learn more about each!
Mallet instruments include marimba (in the video above), xylophone and bells, just to name a few. They are keyboard instruments because their bars are set up like a piano keyboard.
Timpani are a set of drums that can be tuned to specific pitches. One drum might be tuned to a D, while another one is tuned to an A, and still another one is tuned to an F Sharp.