Cwmni Recordiau Sain - the first wholly Welsh language record label - is celebrating the 40th anniversary of the release of its first single.
'Dwr', sung by Huw Jones, released on 9 October 1969, was a protest song about the flooding of the small community of Tryweryn, near Bala, in 1965 to provide water for Liverpool. The song was produced by Meic Stevens.
The Sain record label, based at Llandwrog, near Caernarfon, Gwynedd, was founded in 1969 by Huw Jones and Dafydd Iwan with a £500 loan from businessman Brian Morgan Edwards.
The label provided a launch-pad for many burgeoning talents and quickly became one of Wales' leading record companies.
This clip of Huw Jones singing the song is taken from the BBC Wales programme The Sixties, first shown in December 1969, in which presenter Vincent Kane looked back on a decade of change in Wales.