30 June 2009 at 06:39 GMT
AOL Radio are currently previewing tracks from the Harry Potter and the Half-Blood Prince score. A track is being played every hour, on the hour.
The score is composed by Nicholas Hooper, who also scored Order of the Phoenix, and will be released on July 14.
To listen to the soundtrack previews, click here and select “Listen to Movie Scores on AOL Radio”.