Does anyone know this band/1976 album? Were they any good?

Trotto: Songs and Dances from the Middle Ages to the Present Day
https://mainlynorfolk.info/folk/records/trotto.html

Found quite an expensive copy in the folk section of a shop with a 'no listens' policy today - it looks intriguing but I don't want to gamble on a duffer, ha ha!

I can't seem to find any info/tracks online, but I bow to the skills of more advanced Googlers than I...