Frankfurt 1991 is only the second release documenting the second incarnation of Iskra 1903, Paul Rutherford's favorite trio setting from 1977 to 1995. The lineup of Rutherford (trombone), Philipp Wachsmann (violin and electronics), and Barry Guy (double bass) also have a live performance out on Maya Records. The original trio (minus Wachsmann, plus Derek Bailey) has left a couple of LPs on Incus for posterity (reissued with lots of unreleased material as Chapter One: 1970-1972). This CD presents almost all of the concert the trio performed in Frankfurt on October 1, 1991 -- almost, because the tape ran out before the end of the last piece. First comes a very solid long improv, 33 minutes of complex interaction with many highlights, including a beautiful, concise, and humble ending.