Tracklist:
01. Revolving Seasons - 2:05
02. That Which Doesn't Change - 2:06
03. New Class - 1:43
04. After School - 1:37
05. Real Feelings - 2:26
06. Difficult Customer - 1:50
07. Let's Go Home Together - 1:46
08. A Clear Day - 1:58
09. Memories - 2:10
10. The Road to the School - 2:21
11. Friend - 1:39
12. Beginning - 1:46
13. Lunch Break - 1:46
14. School Fair - 1:48
15. Rumor - 2:06
16. Which One is Cute? - 2:22
17. Weird - 1:33
18. So Do I - 1:37
19. Backstage - 1:34
20. Confession - 2:36
21. Feelings of a Girl - 2:28
22. Feelings of a Boy - 2:29
23. Two People - 2:15
24. Unstable Mind - 2:07
25. Middle Schooler - 1:49
26. Insensitive - 1:35
27. What I Want to Convey - 2:16
28. Passing Each Other - 2:02
29. Bewilderment - 1:55
30. Different Sentiments - 2:01
31. That Time - 1:40
32. Be Brave - 2:04
33. Uneasy Existence - 1:41
34. One's Own Thoughts - 1:54
35. You - 1:53
36. Itsu datte. (Anime 89sec ver.) - 1:34
37. For You ~Anime ver.~ - 1:33

Not my upload!!
Credits to original uploader.
=)

Hourou Musuko Original Soundtrack [MP3] FileServe (http://www.fileserve.com/file/VyXpzSd)
Hourou Musuko Original Soundtrack [MP3] FileSonic (http://www.filesonic.com/file/2280109404)

Thank you for sharing. This is a very beautiful anime and a deeply personal one for me.