'Noise' is, historically speaking, not this or even especially like this, so it's fair to put it second.

The 'avant-garde' is a group of people who explore new territory. It's French for 'vanguard,' and we even use 'vanguard' in the same way when describing a group of artists or an artistic movement who break new ground, ostensibly for others to follow. It has a lot of connotations of elitism for what reasons that should be obvious. It's also one of the more useless descriptive terms imaginable, as it applies equally well to something like this and various serial compositions, to Pollock and Stella, to Greenaway and Brakhage, to Beckett and Nabokov, etc. But it has its purpose.