Too many items with the wrong category

[ptoye]

I'm trying to find works for chorus and piano. There's a perfectly good category for this at https://imslp.org/index.php?title=Categ ... e:Catintro

However, even a cursory search finds that there are a LOT of works which are either a cappella (with a piano for rehearsal purposes only), works with orchestral reductions or even solo songs. All of these have perfectly good categories of their own. This makes it a complete waste of time trying to sort out the wheat from the chaff. I reckon that of the two dozen or so items that I looked at, at least half were inappropriately categorised.

Is there any way in which someone can look quickly at each item and update the category where appropriate? It's not really feasible over the web, given the number of clicks needed to download each item separately. I'd be prepared to help, but not to do the whole lot.