It might well be the "swan song" of a veteran artist at such work.
They were gathering at the feet of “Old Fritz” for their swan song.
It almost made me fear lest it should prove a swan song from the dear minister.
There fell the flower of the Bohemian nobility; and there was heard the swan song of the Bohemian Brethren.
Théophile Gautier wrote of him, "That exhibition was ...