There is so much good content on Wikimedia that it's difficult to choose what to highlight, and I try to be mindful of my number of posts to email lists. I feel that this is worth a special mention because it's beautiful and unusual. Courtesy of User:La Pianista, we have good quality recordings of classical piano works:

I particularly recommend her performance of Chopin's Scherzo No. 3: https://meta.wikimedia.org/wiki/File:Chopin_-_Scherzo_No._3_%28re-recorded%29.ogg. Quote (admittedly opinionated!) from https://en.wikipedia.org/wiki/Scherzo_No._3_%28Chopin%29: "The Scherzo No. 3, Op. 39, in C-sharp minor by Frédéric Chopin, completed in 1839, was written in the abandoned monastery of Valldemossa on the Balearic island of Majorca, Spain. This is the most terse, ironic, and tightly constructed of the four scherzos, with an almost Beethovenian grandeur."

Hope you enjoy,