[Inkscape-devel] Trouble translating extensions

Hi, I'm updating the spanish translation and I find that the extensions have been incorporated to the po. That is a Good Thing (tm)! but I have a problem with the translation of some of the effects, for example:

"FretFind*": What does ET stand for in "FretFind Multi Length ET"?

"Kochify": What do they do, and what does Koch have to do with it?

"Summer's night": What does it do? Shakespearian reference?

Thanks in advance,