!!! Progressive IDM track with 4 guitar phrases. !!! Track that builds a song simply by rearranging the order of four impressive guitar phrases. We pursued the charm of sound and the beauty of structure to the maximum from a limited number of phrases. Not to mention the guitar, snares, Rhodes pianos, rhythm machines, synthesizers, etc., all the sounds of this song are sampled from playing your own instrument. Therefore, even if the phrase is the same on the score, it is worth listening to the fact that it develops with an exquisitely different sound when played by a human being. Oxygen, it stands for "unconscious", The invisible one changes with a big undulation as it flows. This is an invitation to dive deep into that big undulation