Hindu texts to an author, as a derivative work they are considered less authoritative than "Sruti" in Hinduism. The Smrti literature is a vast corpus of diverse texts, and includes but is not limited to Vedāngas, the Hindu epics, the Sutras and Shastras, the texts of Hindu philosophies, the Puranas, the Kāvya or poetical literature, the "Bhasyas", and numerous "Nibandhas" (digests) covering politics, ethics, culture, arts and society. Many ancient and medieval Hindu texts were composed in Sanskrit, many others in regional Indian languages. In modern times, most ancient texts have been translated into other Indian languages and some in Western languages.
Shiksha musical performance. Individual sounds in the Sanskrit have independent personalities, and the reciter helps develop their character and their timbre, state Wilke and Moebus. Naradiya Siksa, a phonetics treatise on the Sama Veda explains this aspects of phonology with various similes, such as, Pratisakhyas are the oldest "Siksa" textbooks of each branch of the Vedas. Later Siksa texts are more specialized and systematic, and often titled with suffix "Siksa", such as the Naradiya-Siksa, Vyasa-Siksa, Pari-Siksa and Sarvasammata-Siksa. The Pratishakhyas, which evolved from the more ancient Vedic Texts padapathas (") around 800 BCE, deal with the manner in which the Vedas