someone just added clips of sonic youth doing instrumental versions of songs that would later appear on
a thousand leaves to youtube. strange that i found it first, considering i've been on youtube about four times total. anyway, i'd say it's very nice live footage of sonic youth in a studio setting. just go about 3/4 or more down this page once you've gone to this link:
http://www.youtube.com/results?search=sonic%20youth&sort=relevance&page=3