The string quartet sei-jaku by German composer Klaus Lang, documented on this CD, was performed on June 30, 2002 in the Grober Sendesaal of the SFB Berlin by the Arditti String Quartet during the festival Inventionen 2002.

Horatiu Radulescu's String Quartet No 4, opus 33 (1976-87) performed by the Arditti String Quartett at IRCAM/Centre Pompidou Paris in 1996.