Matisse is always regarded as the great colourist of 20th-century art, and when I was a student, I thought the same. But now I think there is a whole other tradition of colour, apart from Matisse's very harmonic approach, which Picasso represents. It's a tradition of strident, dissonant, jarring colour that you can see very clearly in this painting from 1931, Still Life on a Pedestal Table from the Musee Picasso in Paris.