It was amazing !

 When Prognosis played music, they were very good. But I didn't intend to listen to a lecture on the history of Pink Floyd. I found it even more objectionable, that the lecturer would get up after every song or two, interrupting the flow of music. I found it impossible to get emotionally involved in the music. I mentioned this to a member of the band, and he said "I agree with you completely, but he (the lecturer) is the leader of the band. Hope this review is helpful. &