Elisabeth Condon photo blogs visits to recent and current painting shows in Chelsea including two shows at Gagosian, Jean-Michel Basquiat (through April 6) and Helen Frankenthaler (through April 13), Painting Advanced at Edward Thorp (through April 20), Al Held at Cheim and Read (through April 20), Susanna Heller at Magnan Metz (through April 20), Barkley Hendricks at Jack Shainman (through April 6), and several images of paintings by Mary Jones recently on view in her studio exhibition.