The Samaveda (Sanskrit: s?maveda, from s?man "song" and veda "knowledge"), is the Veda of melodies and chants. It is an ancient Vedic Sanskrit text, and part of the scriptures of Hinduism. One of the four Vedas, it is a liturgical text which consists of 1,549 verses. All but 75 verses have been taken from the Rigveda. Three recensions of the Samaveda have survived, and variant manuscripts of the Veda have been found in various parts of India. While its earliest parts are believed to date from as early as the Rigvedic period, the existing compilation dates from the post-Rigvedic Mantra period of Vedic Sanskrit, c. 1200 or 1000 BCE, but roughly contemporary with the Atharvaveda and the Yajurveda. Embedded inside the Samaveda is the widely studied Chandogya Upanishad and Kena Upanishad, considered as primary Upanishads and as influential on the six schools of Hindu philosophy, particularly the Vedanta school. The classical Indian music and dance tradition considers the chants and melodies in Samaveda as one of its roots.