Indian classical music is the classical music of the Indian subcontinent. It is generally described using terms like Shastriya Sangeet and Marg Sangeet. It has two major traditions: the North Indian classical music known as Hindustani and the South Indian expression known as Carnatic. Hindustani music emphasizes improvisation and exploration of all aspects of a raga, while Carnatic performances tend to be short composition-based. However, the two systems continue to have more common features than differences. Another unique classical music tradition from the eastern part of India is Odissi music, which has evolved over the last two thousand years.
The roots of the classical music of India are found in the Vedic literature of Hinduism and the ancient Natyashastra, the classic Sanskrit text on performing arts by Bharata Muni. The 13th century Sanskrit text Sangeeta-Ratnakara of Sarangadeva is regarded as the definitive text by both the Hindustani music and the Carnatic music traditions.