This is a really cool idea. At the mucony.com online music school, you can download instructional videos from great musicians. Here is student Nilko Guarin being instructed in the fine points of the First Villa-Lobos prelude by his teacher, David Leisner.
Meanwhile, if you’re in the U.K. later this month, you can hear Leisner play the Preludes in concert. I’m listening to his preludes on the Naxos Music Library.