however, i gotta say it, its a pretty damn good deal here.
I disagree, I gave the gold membership a try and was completely disappointed. I do think the stuff collected in the sheet music request section is excellent, and I would suggest a) opening up the library to non-paying members and b) collecting in the library the materials posted in the sheet music request area. Like a wikki.
The two scores I thought were cool in the PS library were the Liszt B Minor sonata manuscript and the 15 inventions' manuscript. We should have more freely available manuscripts and first editions.
There are other places for that, though, like
https://imslp.org, so probably there is no need to change anything here. Unfortunately,
https://imslp.org is also fairly weak on manuscripts and first editions.