The state's cultural lineage is ancient and checkered. Madhya Pradesh occupies a special position in the history of music. The Gwalior gharana is among the most prominent arbiters of style. The rivalry of Tansen and Baiju Bawra is remembered in fantastic detail to this day. In modern times, the revival of north Indian classical music was accomplished by the legendary Ustad Allaudin Khan, guru of famous sitarist Pt. Ravi Shankar and sarod player Ali Akbar Khan. Madhya Pradesh also has a rich tribal culture: the bison-horn dance of the Muria tribe in Madhya Pradesh is a dynamic interpretation of nature's mating season.