Jayadvaita Swami, a senior disciple of Srila Prabhupada and a prominent figure in the International Society for Krishna Consciousness (ISKCON), has outlined Srila Prabhupada's kirtan standards based on his observations and teachings from Srila Prabhupada. These standards emphasize the importance of purity, devotion, and adherence to tradition in the practice of kirtan (congregational chanting of the holy names of God).