Oh this truly is a wonderful piece of music! The symphonic band at my undergrad did an entire concert devoted to de Meij's work and he came to work with the band. I got to watch him rehearse the first movement with them; it was very cool to see a composer in action.
I always feel drawn to the second movement. I really like how he makes the winds imitate bird calls, it reminds me of the opening passages in Stravinsky's Rite of Spring.
The return of Gandalf's theme as Frodo peers into Galadriel's mirror is very haunting.
This music will always hold a special place in my heart as it is not wedded to visual imagery.
-WaB?