Abigail Mead, the composer of eight songs of this soundtrack, is actually Vivian Kubrick, daughter of Stanley Kubrick.
The disc has 15 tracks:
The first song is a hip-hop/techno mix of the cadences sung by Sgt Hartman in the first part of the movie, it is not a beautiful or good and I don't think it was necessary to include it.
The songs 2 to 7 are songs from the sixties and hear them during the movie creates a "mood" for the movie, for example, the song These Boots Are Made For Walking, by Nancy Sinatra and the scene in Vietnam which a prostitute is walking fits just perfectly and watch the movie without this song would have much less effect. Although they are not complex songs and most of the lyrics are foolish it's worth to have them in the score because they made a good part in the movie.
Song number 8 is the Marine's Hymn, a nice inclusion even thought it's not likely that someone would play this song very often at home.
The rest of the score are the instrumental themes composed by Abigail Mead, some of them are quiet and peaceful like Leonard, and others are more aggressive like Parris Island, with some nice stereo effects.
This is not the best score for a Stanley Kubrick movie and I suggest you to listen to it before you buy or you can have some bad surprises like not listening to Paint it Black, because it was not included or odd songs like Time Suspended. Actually I would suggest this soundtrack for Collectors, Kubrick fans or people with eclectic musical taste.