A nice recording of a great performance. Some FM hiss lingers, but well worth the download. 

JAZZ COMPOSER'S ORCHESTRA 
NDR Jazzworkshop No. 41, Studio 11, Hamburg, Germany 
October 29, 1965 

Source: FM > ? > CDR > EAC(secure) > FLAC (dBpowerAMP) 

Michael Mantler (tp); Steve Lacy (ss); Prince Lasha (as,cl,bcl); Hans Koller (ts); Ronnie Ross (bs,cl,bcl); Attila Zoller (g); Carla Bley (p); Paul Bley (p); Kent Carter (b); Barry Altschul (d) 

1. Touching (Peacock) 5:36 (PB,KC,BA only) 
2. Both (Peacock) 5:28 (MM,SL,HK,PB,KC,BA only) 
3. Isis (Peacock) 7:02 (MM,SL,HK,PB,KC,BA only) 
4. Cartoon (Peacock) 8:53 (CB out) 
5. Walking Battery Woman (Bley) 3:41 (MM,SL,CB,KC,BA only) 
6. Communications No.7 (Mantler) 6:27 (CB out) 
7. Slow Dance (Bley) 7:20 (CB out) 
8. Closer (Bley) 7:54 (MM,SL,AZ,PB,KC,BA only) 
9. Doctor (Bley) 7:57 (MM,SL,AZ,CB,KC,BA only) 
10. Floater (Bley) 7:53 (CB out) 
11. Communications No.6 (Mantler) 11:40 (PB out) 

Note: there seem to be different versions circulating (H.L. Lindenmaier's Steve Lacy discography slightly differs (regarding running order and timings) from what's listed above. 

Also see: 
http://www-personal.umich.edu/~mendahl/jco/jco.html 
http://jazzmatazz.home.att.net/liveinfo/Carla_Bley_JCOA-Hamburg.txt 
http://www.uni-duisburg.de/AVMZ/frohne/discos/hamburg.htm