Amazon has posted the Half-Blood Prince soundtrack titles on their website. It was composed by Nicholas Hooper (also did Order of the Phoenix), will be released on July 14th, pre-ordered it here or here.

1. Opening
2. In Noctem
3. The Story Begins
4. Ginny
5. Snape & the Unbreakable Vow
6. Wizard Wheezes
7. Dumbledore’s Speech
8. Living Death
9. Into the Pensieve
10. The Book
11. Ron’s Victory
12. Harry & Hermione
13. School!
14. Malfoy’s Mission
15. The Slug Party
16. Into the Rushes
17. Farewell Aragog
18. Dumbledore’s Foreboding
19. Of Love & War
20. When Ginny Kissed Harry
21. Slughorn’s Confession
22. Journey to the Cave
23. The Drink of Despair
24. Inferi in the Firestorm
25. The Killing of Dumbledore
26. Dumbledore’s Farewell
27. The Friends
28. The Weasley Stomp