Partbook

A partbook is like a special kind of book that tells musicians which music notes to play on their instruments. It's like a secret code that helps them play together in harmony. Each musician has a different partbook that matches their instrument, and they use it to practice and perform music with other people. It's a really important tool for musicians because it helps them learn how to play their part in a song and stay on the right rhythm. Kind of like how you use pictures and letters to learn how to read a story, musicians use their partbooks to "read" the music they are playing.