I also played Gandalf and I loved it. Gandalf is from the Lord of the Rings first symphony by Johan de Meij (Dutch). I have the CD, the symphony is half an hour long and I think it has five movements (songs) Gandalf,Lothlorien,Gollum, a journey in the Dark, and The Hobbits.
The orchestra is no other than the London Symphony Orchestra and I like the CD a lot.
Loved playing the easy version of the first symphony.