Well, I learned of this a little too late, but anyway...
So during the afternoon of today (in Japan's local time), the Japanese Philharmonic Orchestra held a concert called The Legend of RPG (
http://jagmo.jp/), where they basically played many background tracks of RPG's. Chrono Trigger was among these games.
http://jagmo.jp/images/information_songs_bono.pngThis is the chart with the songs played. Chrono Trigger is the second one. While they played 4 pieces, 3 of them are medleys, so the overall number of songs is actually higher than 4. Since I know little Japanese, I can only tell a few of the songs, but currently I can see Frog's Theme, Guardia Castle's, the Main Theme, etc.
Though it'd be nice to have someone translate it whole to see the whole list.
As I mentioned before, this already passed, since the concerts were held at 3 and 7 PM of Japan's local time. Oh well, what a shame.