This is lovely - never heard it before. Where did he play it?
On a BBC radio show in 1985, together with a piece that used to be called "12 Bar Blues". The latter can be found on the bootleg "I Met A Sweet Senora in Barcelona". That bootleg has been copied under the names "Balm For The Walking Dead" and "Yassakkanda Pangalin".
Oooooh! I knew I missed some of this programme and only caught the last half hour with the Ommadawn piece and 12 Bar Blues. It was actually 1981 and the programme was London Tonight with Sarah Ward on Capital Radio. Thankfully someone else turned their radio and tape recorder on earlier than I did. A great addition to the "archive" and something new to me - amazing after all these years.