For those who don't know what Loop is, it was a noisy piece that Cale composed for the free flexidisc given away with the 60's underground magazine Aspen.
On the electronic front, there's the free-wheeling manipulation of dials in control rooms; sub-sonic sounds that you feel, not hear; machine noises; feedback; tape echo; anything!
Velvet Underground
Loop
John Cale, Guitar and Feedback
7 mins. 14 secs.
mp3 | alt mp3 2 MB file, bitrate 40 Kbits/sec
real audio 852 KB file, bitrate 16 Kbits/sec
On the original flexi-disc, the last groove in this record is a "locked groove," repeating ad infinitum; for this web version, we let it loop for about 45 seconds.
http://www.ubu.com/aspen/aspen3/audio3.html