All in all, these motets feature a mastery and wisdom of compositional grace. He understands the world of choral polyphony very well indeed and applies his understanding with imagination and taste, and to considerable effect. These pieces are polyphonic and each part is very independent. Sometimes a voice will make an unexpected chromatic shift that at the same time seems very logical and very energizing. Above all, Peros' music is beautiful.
Orchestral intensities alternate with stillnesses that crackle with the harp, chimes and triangle.
The composition is in three sections that trace the buildup and explosion of the lights, then their eventual fading. It comes over as a clear tone poem which, even without its title, can convey the correct image. It's music for a modern dance ballet depicting the Northern Lights and achieves great expressive subtlety moving from the light-hearted frolic of the awakening lights to the full majesty of the Dance of Colors with complete conviction.