Notation system

Indian music is traditionally taught via oral methods and, until the 20th century, did not employ notations as the primary media of instruction, understanding, or transmission. The rules of Indian music and compositions themselves are taught from a guru to ashishya, in person. Various Indian music schools follow notations and classifications (see melakarta and thaat); these are generally based on a notation system created by Vishnu Narayan Bhatkhande.