This song is from Ballads and Songs, an album by the great British folksinger Nic Jones, released in 1970.
“Little Musgrave” better known as “Matty Groves” is a ballad probably originating in Northern England that describes an adulterous tryst between a young man and a noblewoman that is ended when the woman’s husband discovers and kills them. It is listed as Child ballad number 81 and number 52 in the Roud Folk Song Index.
This song exists in many textual variants and has several variant names. The song dates to at least 1613, and under the title Little Musgrave and Lady Barnard is one of the Child ballads collected by 19th-century American scholar Francis James Child.
Many others have recorded the ballad, including Fairport Convention, the Clancy Brothers, Jean Ritchie, Tom Waits, Doc Watson, Ralph Stanley and Joan Baez.