The 'Concerti for Christmas' concerts given by the Amicables have become a new Cambridge tradition. This vibrant young chamber orchestra, performing on period instruments without a conductor, is a democratic ensemble of soloists, who thrill audiences with their superb musicianship and risk-taking energy. This year their programme includes some perennial favourites: Bach's Brandenburg Concertos No. 3 (the one with 3 violins, 3 violas and 3 cellos) and No. 6 (the one with no violins, 2 violas and 2 viols!), as well as works by Vivaldi, Locatelli, and Valentini.