Trail of Cthulhu: Four Shadows is a collection of four songs designed to be played during your Trail of Cthulhu game. The titles of the songs are: Anagnorisis, Ruminations, Pulp Trail of Cthulhu Theme and Purist Trail of Cthulhu theme.
The variations in the theme songs are for the two, different styles of play. I thought that these compositions fit the bill of what background music for gaming should be. Each of the songs has a broad focus with enough variety of sound and pitch to keep the music interesting. Ethereal choirs, a full symphony and some unusual sound effects flesh out the compositions, which average about three minutes in length.
Four Shadows is an excellent collection and well worth picking up.