[youtube=http://www.youtube.com/watch?v=V8Ca_edg6RE] There’s video up at the Disney Parks blog of a scoring session for one of their new live shows at California Adventure in Anaheim. It’s a reworked version of “Night on the Bare Mountain” by Modest Mussorgsky, which was used for one of the segments in Fantasia. That piece has always fascinated me because…