2 adjectives to describe afterpieces

It was migration of peoples, the last advance of Asiatic races towards Europe, followed only by the fruitless attempts of those under Attila, Zenghis Khan, and Timur, and as a comic afterpiece, by the gipsies,it was this movement which swept away the humanity of the ancients.

The fifth act is an independent afterpiece, though its independence is slightly disguised by the fact that the erregende Moment of the new play follows close upon the end of the old one, with no interact between.

2 adjectives to describe  afterpieces