The album represents a three-year collaboration between Welsh folk musician Gareth Bonello (The Gentle Good) and artists from the indigenous Khasi communities of North East India. Between 1841 and 1969, hundreds of men and women left Wales to establish and maintain the first Welsh Overseas Mission in the Khasi and Jaiñtia Hills, with profound and lasting consequences for Khasi society and culture. Recorded in the city of Shillong and in villages around Meghalaya, ‘Sai-thaiñ ki Sur explores folklore, song, missionary hymns, poetry and identity in both societies. The album weaves together a range of voices from all over Meghalaya, representing a selection of the music written, arranged and recorded together. Some tracks are unaltered live takes made in the village of Pahambir, or in an old mission house in Mawkhar. Others were recorded by Peter Dkhar at Merliham Arrangements, a studio in Shillong, and the final touches recorded and mixed in Cardiff by Llion Robertson.
The album received widespread critical acclaim upon its release and went on to be listed #3 in The Guardian's Top Ten Folk Albums of 2021.