Concarneau. Calme du Matin. Op. 219 (Larghetto)

Concarneau at calm morning — subtitled 'Op. 219 (Larghetto)' in Signac's musical notation system — represents his early Breton series at its most reflective. The morning calm before the fishing fleet departures was the reverse of the harbor-in-motion subjects he also painted at Concarneau, and the quietude allowed him to concentrate on the reflective water surface and the particular morning light quality of the Atlantic coast. The musical opus number and tempo marking ('Larghetto' — rather slow) indicated both the systematic character of his project and the emotional resonance he sought to build into his divisionist color harmonies.

The calm morning sea is the painting's central technical achievement: still water produces near-perfect reflections, requiring Signac to render the harbor and sky twice — once directly and once inverted in the water surface — with each element's color modified by the angle of reflection and the transparency of the water. The cool, silver-grey quality of Atlantic morning light determines the overall palette.