"Pleasant and Delightful" is also known as "The Larks They Sang Melodious".
Sam Larner sang "Pleasant and Delightful" in a recording made by Ewan MacColl and Peggy Seeger made in 1958-60. Louis Killen sang "Pleasant and Delightful" in a midnight folk concert in London in May 1963 which was recorded by Decca.
Louis Killen commented:
When I was nine years of age my older brothers used to sing the first chorus of this song in three part harmony. Where they got it from I do not know, nor do they remember, but they would sing it “ad nauseam”, me too! It was another sixteen years before I found the rest of the words and tune, sung by Sam Larner of Winterton, Norfolk. Not long after I'd learned it, my friend Paul Carter, now of Bristol, presented me with this tune, to the same set of words, but much sweeter to harmonise.
This was the theme song of the gatherings at Sunhearth. We sang it every year. We even had t-shirts made with "And the larks they sang melodious …" on the front because Walt Martin was particularly fond of that first chorus.