Here's a nice SBD of Chicago promoting their 3rd LP I picked up a while back. By request at https://unransomed-counsel.000webhostapp.com/whotrader%20list.html

Chicago
Tanglewood,Lenox, MA

July 21, 1970 (1970-07-21)

01.[06:44] Introduction
02.[00:30] Chat
03.[06:51] In The Country
04.[04:30] Free Form Piano
05.[03:53] Does Anybody Really Know What Time It Is?
06.[07:03] 25 or 6 to 4
07.[05:39] Poem for the People
08.[00:55] Chat
09.[05:06] I Don't Want Your Money
10.[00:45] Chat
11.[05:46] Mother
12.[14:39] It Better End Soon
13.[06:46] Beginnings
14.[00:54] Chat
15.[06:40] Ballet For A Girl In Buchanon Part 1
16.[06:12] Ballet For A Girl In Buchanon Part 2
17.[00:44] encore applause
18.[08:29] I'm a Man
19.[01:04] applause
20.[00:35] thank yous
21.[01:13] Closing Announcements

Total 1:34:58

Robert Lamm - keyboards, lead vocals
Terry Kath - guitar, lead vocals
Peter Cetera - bass, lead vocals
James Pankow - trombone, percussion
Lee Loughnane - trumpet, percussion, background vocals
Walter Parazaider - woodwinds, percussion, background vocals
Daniel Seraphine - drums

Lineage: SBD > Internet files > You

001-Introduction
002-Song Introduction
003-In The Country
004-Free Form Piano
005-Does Anybody Really Know What Time It Is
006-25 or 6 to 4
007-Poem for the People
008-Song Introduction
009-I Don't Want Your Money
010-Song Introduction
011-Mother
012-It Better End Soon
013-Beginnings
014-Song Introduction
015-Ballet For A Girl In Buchanon (pt.1)- Make Me Smile (pt.1) - So Much To Say- So Much To Give - Anxiety's Moment
016-Ballet For A Girl In Buchanon (pt.2)- Colour My World - West Virgina Fantasies - Make Me Smile (pt 2)
017-Encore Applause
018-I'm a Man
019-Applause
020-Terry Kath Outro
021-Bill Graham Closing Announcements