['amateur recording', 'piano song', 'theremin song', 'no percussion', 'no voices', 'instrumental song', 'soothing sound', 'relaxing music']
This amateur recording features the main melody being played by a theremin. This is accompanied by a piano. There are no other instruments played in this clip. The mood of this song is relaxed. There are no voices in this song. This song can be played in a slow motion action scene in a superhero movie.