I'll describe each track in relation to the game, to let people decide for themselves if this CD has what they want. The order of the tracks adheres roughly to a reasonable path through the game, except that "Link" by that reasoning should be further down the list and "Temple" further up. Personally, I think the music over the opening Cyan credit would have been a better opening track, but it isn't included, although otherwise all of Riven's music seems to be present. In fact, some of the tracks are longer versions of music in the game, since here they don't have to be trimmed to fit. :)
Despite the name of one track, no dialogue from the game is included, not even any of the speeches from the alternate endings. The effect of the entire CD is very soothing - the music is very good and was composed to help establish Riven's atmosphere.
"Link" - The brief sliding sound heard when a link book takes the player from one island to another.
"Atrus' Theme" - After the first few bars, which aren't heard at the beginning of the game, this theme tracks Atrus' first meeting with the player, but does not include his speech.
"Gateroom" corresponds to the revolving room on Temple Island - the island on which the player first enters Riven.
"Jungle Totem" begins when the player steps off the stairs to approach the warhk idol on Jungle Island.
"Survey Island Theme" accompanies the causeway on Survey Island - the outdoor pathway running through the oversized map of Riven.
"Temple" corresponds to the temple on Temple Island - the complex in which the room at sea level contains wahrk statues, spilled offering bowls, and stained glass windows.
"Village Entrance Theme" begins when the player enters the blue-lit cavern between the jungle path and the village. (A cave painting of an outsize D'ni figure and smaller human victims can be seen there).
Once the player reaches the village jail, "Moeity Caves" accompanies the exploration of the caves. "Moeity Theme" begins once the player solves the puzzle in the Moiety caves, and cycles until the player steps through to the Moiety's hideout. "Boat Ride" plays while the Moiety transport the player to a holding cell, at which point "Moeity Prison" takes over.
"The Red Cave" is closely related to "Wahrk Room", which accompanies the undersea 'throne' room on Survey Island. (Pressing the correct button on the throne's built-in gadgets will summon a wahrk to the underwater window overlooking the throne.)
"Catherine's Prelude" begins as the player first steps from the fire marble onto the causeway leading to Catherine's prison. "Catherine's Theme" is very brief. If the player manages to find and free Catherine, "Catherine's Freedom" is played as she joins you in the elevator and asks to see the book. (It tends to be played over trailer animation advertising the game, as well, having a very dramatic steeple-chasing theme.)
If the player solves the fire marble puzzle, "Gehn Speaks" underlies Gehn's first speech. "Gehn's Theme" follows; alternately, it plays in full if the player summons Atreus to Riven before resolving the situation between Gehn and the prison book, continuing through the closing credits.
"Fissure" - End title theme, if the player has successfully dealt with Gehn before summoning Atreus to Riven.
"Bonus Track" - Miller notes on the accompanying booklet that while this piece didn't fit any of the visual sequences, he swiped bits of it for several of the tracks that *did* make it into the game.