The Five Mystical Songs contain some of the best-known Vaughan Williams (The Call; Let all the World in Every Corner Sing). They were published with both piano (as here) and orchestral accompaniment. This recording with the Cherwell Singers was made in the recently built Jacqueline du Pré Music Building in Oxford. The sound is extremely dry and analytical. There was a gale blowing, and although we couldn't hear it, there were obviously big drafts in the hall, which produce obvious rumble, because I don't normally use a windshield indoors... Or maybe it's someone kicking the floor.