Here goes the most beautiful use of feedback noises:
Endless Nameless by Nirvana
This song is from the Nevermind album and it`s played (sort off) when
they are smashing their guitars and drums on the end of shows
this song appears 15 minutes after the last song has ended.
Intro: Drop d for lower sound
E****
A****
D****
g
b
e
* means heavy palm muted repeat this over again with the CD
And then ad a verry heavy smash when play on the highest frets of your
guitar (as far as your hand gets into the cutaway)
To ad a verry cool sound use full disstortion, keep tuning your high
E string till it snaps and don`t keep your guitar far from your amp
This wil cause high sounds you usually don`t want,but for playing
Nirvana it`s just part of the show