Both are long programs allowing for the creation of polished work(s).
Walden has 50 students, some advanced composers and some who have never written a piece. Many are performers, all are “creative kids.” The concert at the end of the program is quite astounding. World class musicians such as Claire Chase from ICE come and hang out, eat dinner, share extended techniques and perform student pieces. Walden, like BUTI, has classes during the day (some are pretty cool, some involve Walden’s own theory system which can enhance other theory learned), private lessons, and time set aside to compose. It is very collegial. Students work on one piece the entire time, which can be a great experience.
Walden really emphasizes community. The whole group sings in chorus, hikes on Saturdays, and they have events like Christmas in July. Every night the whole program-students, faculty, staff, nurse- gather and sing good night music in a circle. My daughter was more of a cynical type and joked about avoiding hugs, but I have to say she was converted. She has a health issue that required attention and I have never felt so safe, leaving her there. I think Walden is like a giant palm holding kids and their talent. Sounds corny, and I am not one to be corny, but the spirit of the place really is extraordinary. But maybe not everyone’s cup of tea.
The music is chamber music of course, no orchestral opportunities like BUTI. There are opportunities to perform and many peers appreciate a talented colleague. Walden kids often tend toward a place like Oberlin (often double degrees), or Ivies, for school choices, just anecdotally. The students can be from all over, including Greece, UK, France.
My daughter came out of Walden with a wonderful performance of her piece, and used it to apply to schools with pretty good success : )
I know about BUTI of course. I think of it as a bit more traditional, yes, but it would be rigorous and an excellent preparation. Either program would provide the immersion experience that your son seems to be seeking. Both are in beautiful surroundings! Tough choice…
Yellow Barn is another good one, but shorter- two weeks I think.
Good luck and feel free to PM!