Each drum chart on the website has been given a reading level, from Level 1 to Level 6. You will see the reading level for each chart listed on it's detail page. The reading level is to be used as a guide to help you select what drum charts might be best for you and/or your students.
Level 1/6 = Beginner
Level 2/6 = Beginner - Intermediate
Level 3/6 = Intermediate
Level 4/6 = Intermediate - Advanced
Level 5/6 = Advanced
Level 6/6 = Professional