Yes performed on this day in 1971 at Theatre 140 in Brussels, Belgium.
At this time in their history, Yes had only released two albums. They would release their third, The Yes Album, just nine days after this performance. As such, they likely performed numbers from this album. The week prior, Yes’ fellow up-and-coming progressive act Emerson, Lake & Palmer performed two dates at Theatre 140. The groups would end the year together on the same bill as they toured North America.
There is no known recording of this particular concert.
This was the second and last time to date that yes performed at Theatre 140, having already performed there in just under four months prior. I talk more about the venue here.