It starts with a line. The line is a highly difficult, piercing, loud tone. This is all there is.
Like any piece like this, you immediately begin to wonder if this is in fact all there is. Like any piece like this, you are tempted to scan ahead in the track to look for any change, or perhaps to skip to the next track. But perhaps something might happen at minute 3 or minute 4, which makes the ardour of attentive listening worthwhile?
Are you sure there's nothing else?