The Master of St. Cecilia, Saint Cecilia Altarpiece

Circa 1304
Tempera on wood, 85 x 181 cm
Galleria degli Uffizi, Florence

The episodes in the image above follow Cecilia's story as told in the Golden Legend (html or pdf).

On the left we see:

On the right the panels follow the story counterclockwise from the upper left:

More of St. Cecilia

Source: Web Gallery of Art