Hidden agenda Phaedrus Ensemble perform for blindfolded concert-goers at Rich Mix in east London.September 7, 2014By Interlude0 Comments More this CategoryLeave a Comment Cancel CommentAll fields are required. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Δ Hidden agenda Phaedrus Ensemble perform for blindfolded concert-goers at Rich Mix in east London.