Sonata Green

> There are a couple of trickier question lies behind the next video playing : This, at least, should be fairly straightforward in the specific case of a playlist.

> We could have a `--keep-history` (to keep past versions). However, we probably wouldn't have a way to _query_ past versions. This part feels like the sort of thing that...

I hereby transfer the copyright on this contribution to Andrew Plotkin.