Here's the first disc of the CC OST, which has most of the "basic" music like boss theme, world themes for both worlds, village music and such. To summarize it better, the music for the first part of the game before you loose Serge to Lynx.
1-Chrono Cross~Time's Scar
2-The Brink of Death
3-Arni Village~Home
4-Time's Grasslands~Home World
5-Dancing the Tokage
6-Reminiscence~Feelings Not Erased
7-Dream of the Shore Bordering Another World
8-Another Arni Village
9-He Sang of Feeling
10-Lost Fragments
11-Drowning Valley
12-Termina Village-Another World
13-Leaving the Body
14-Forest of the Shadow's End
15-Snakebone Mansion
16-Victory Springs Gift
17-Child Lost in Time
18-Guldove-Another
19-Swamp of the Hyrda
20-Fragment of a Dream
21-Voyage-Another World
22-Ghost Ship
23-Deathfire Mountain
24-Fortress of Ancient Dragoons
25-Pathetic
