music festival in Florence: does anyone know dates?

Oct Musica dei Popoli Festival Florence The website describes the festival, but I could find no other info re dates, times, costs. Found the original listing on RS Festival link. Will welcome any info you have. Thanks!
Another note: I recommend checking RS updates to the guidebooks, also available on his site. If I had seen this before firming up all arrangements, I would have booked less time in Cinque Terre,a s the trains between towns are not nearly as good a deal as previously, and part of the trail I'd planned to hike is closed.