Maddy Prior is a legend on the English folk music scene, having been the lead singer of ‘Steeleye Span’ and then gone on to front several bands of her own as well as undertaking numerous solo projects. Her website is here. I believe the musicians are Benji Kirkpatrick and Giles Lewin.
Dives and Lazarus is an old folk ballad based on the biblical parable of the rich man and Lazarus in Luke 16:19-31. As usual, ‘Mainly Norfolk‘ has a good summary of the song’s recording history in England. Two nineteenth-century versions of the text are given in Child’s ‘The English and Scottish Popular Ballads’, but Child also notes possible earlier versions dating back as far as 1557. The tune is a well-known one and is often sung in Ireland to a song called ‘The Star of the County Down’.
There are other excellent renditions of this song, including this much quieter and more reflective version from Martin Simpson’s 2001 CD ‘The Bramble Briar’. This live version by Nic Jones is very poor recording quality but is also quite valuable – the tune is slightly different from the Prior and Simpson versions. The Young Tradition recorded a very fine unaccompanied version on their 1965 album ‘The Young Tradition’; it can be found here. Note their use of the name ‘Diverus’ rather than ‘Dives’, which is also well known in the tradition.