The Guru Granth started as a volume of Guru Nanak's poetic compositions. Prior to his death, he passed on his volume to Guru Angad (Guru 1539–1551). The final version of the Gurū Granth Sāhib was compiled by Guru Gobind Singh in 1678. It consists of the original Ādi Granth with the addition of Guru Tegh Bahadur's hymns. The predominant bulk of Guru Granth Sahib is compositions by seven Sikh Gurus – Guru Nanak, Guru Angad, Guru Amar Das, Guru Ram Das, Guru Arjan, Guru Teg Bahadur and Guru Gobind Singh. It also contains the traditions and teachings of thirteen Hindu Bhakti movement "sants" (saints) such as Ramananda, Namdev among others, and two Muslim saints namely Kabir and the Sufi Sheikh Farid.