Here is the full list of all 6 Flight of Light trophies - there are 1 bronze, 3 silver and 2 gold.
Complete the Main Campaign
Complete all Levels on Planet Corona as part of the Main Campaign
Complete all Levels on Planet Oceana as part of the Main Campaign
Complete all Levels in the Outer Colonies as part of the Main Campaign
Complete Any Level
Finish Any Level on Score Mode, on either Medium or Hard Difficulty, Without Hitting a Single Note