James McNeill Whistler
Nocturne:Grey and Gold - Snow in Chelsea (1876). 47,2 cm x 62,5 cm. Fogg Art Museum, Cambridge, Massachusetts

"Nature contains the elements, in colour and form, of all pictures, as the keyboard contains the notes of all music. But the artist is born to pick and choose... that the result may be beautiful – as the musician gathers his notes, and forms his chords, until he brings forth from chaos glorious harmony... (James Abbot McNeill Whistler)"