ok...so, here's a great word... e t h e r e a l
according to Merriam-Websters Dictionay:
ethe·re·al Pronunciation: i-'thir-E-&l
of or relating to the regions beyond the earth; celestial, heavenly; spiritual. lacking material substance; marked by unusual delicacy or refinement.
Usage: Debussy's trademark is his use of the whole-tone scale, giving his music an ethereal feel.