Once - review
Phoenix, LondonMusicals these days tend to batter you into submission. This one, winner of eight Tony awards and based on a 2006 low-budget movie by John Carney that I have deliberately avoided seeing, wins you over with its simplicity, charm and air of sweet melancholy.But, although it dispenses with flying sets, high-kicking chorines and orchestral bombardment, it is anything but artless: in fact it owes its succes…