I was previously introduced by my music advisor to the fact that Daniel Barenboim's Beethoven masterclass lessons could be viewed online.(PIERRE BOULEZ SAAL ONLINE) Young pianists are being taught by Barenboim in various capacities. The online membership with an annual fee of 50 euros allows you to watch all of their lessons. You can also view Schiff's Bach commentaries on the piano and Hampson's (baritone) public workshops on Schubert.
In particular, the Beethoven piano sonata lesson is a great source of inspiration for someone like me who has never studied music properly. It is really helpful for someone like me who wants to create my own music rather than listen to finished music in concert or on CD. I once thought that it would be very instructive to have a recording of a conductor working with an ensemble on the process of creating music, and that is exactly what is being provided right in front of my eyes. This kind of new interaction, which was not possible before, is now possible in the midst of the tremendous expansion and development of digital content.