Google translation (more or less):
The next two shows of "Super Pop 69" will be no less than Yes, Brian Auger, and the Trinity, and the Chicago Transit Authority. And here we go: Montreux once again ensures Swiss exclusivity, and pop music, which is not meant for private houses of worship, will be again reserved for the privileged few. Too bad.

Yes, they're known, you say. Not quite. It's not in concert (Rose d'Or 69*) that they could have been appreciated. Their last single shows them a little better: just rejoice at the fantastic interpretation they make of "Something's Coming". Yes, yes, appears to be one the best bands in Britain and their singer has (almost) the same name as Jethro Tull's flutist. Which means nothing, by the way. Both groups are both very good. We're waiting for Jethro Tull.

[*Yes played the Rose d'Or Festival at Montreux earlier that year, on April 24 -- y_h]