Produced by Joseph Cottrell, Wayne Hall, Ken Fuller and Jeffrey Crecelius

This week, Mark and I returned to our occasional series on Yes concepts. This time we considered Yes audacity - those times when the band has done something few others would have attempted. We both came up with 3 examples and it proved to be a very enjoyable conversation, albeit with quite a bit of shameless self-promotion from me.

In the world of progressive rock, perhaps the most audacious genre of all, what do you think we came up with - and what would you have chosen? Let us know in the comments on the show notes for this week.

• What are the best examples of Yes' audacity from the past 50+ years?
• Innovation or excess?
• Would you have chosen the same examples as us?