After purchasing this I was checking the different tunes to the music clips from the soundtracks. The book doesn't say anything about which versions of the Jane Austen movies these are from.
The Emma songs (Frank Churchill Arrives and End Titles) are from the 1996 Miramax motion picture with Gwyneth Paltrow.
The Sense and Sensibility songs (My Father's Favourite, Devonshire, All the Better for Her, Excellent Notion, and The Dreame) are from the 1995 movie with Emma Thompson, Hugh Grant, and Kate Winslet. Too bad it doesn't include I Weep You No More Sad Fountains.
The Pride and Prejudice songs (Theme, Cannon Collins, The Gardiners, Summary) are from the 1996 A&E Special Presentation with Colin Firth and Jennifer Ehle. Still popular to many Jane Austen fans, but not from the 2005 movie with Keira Knightley.
I couldn't track down where the Persuasion songs (Theme, Tristesse, and Italian Aria) were from. (Read the comments, one of them did!)
The music is beautiful, I just wish I could have been a bit more informed about the music before buying it.