This track from Celtic Symphony was recorded about a year ago. I've actually met Charles O'Connor who lives in Whitby and is an extremely nice man. Just under 4 minutes to enjoy (or endure. PS That's not me clapping at the beginning.
Bonhoeffer uses a similar phrase 'worldly Christianity'. It's J Gresham Machen that I want to line up most closely with. See his Christianity and culture here. Having done commentaries on Proverbs (Heavenly Wisdom) and Song of Songs (Heavenly Love), a matching title for Ecclesiastes would be Heavenly Worldliness. For my stance on worldliness, see 3 posts here.