Sequences 72 & 73

Sequences 72 & 73 is an album by trombonist Paul Rutherford and the group known as Iskra 1912. It was recorded during 1972–1974 in London, and was released in 1997 by Emanem Records. The album features studio recordings of two ensemble works composed and conducted by Rutherford, plus a live recording of a solo trombone piece.

The solo trombone track, titled "Non-sequence," is an excerpt from an event that author Ben Watson described as having "entered Free Improvisation folklore as an inspirational example of musicianly rebellion," in that it involved a performance of Luciano Berio's composition Sequenza V during which Rutherford "began by following the score, then took off on his own." Watson wrote: "Applause and favourable reviews showed that no one – least of all the 'experts' – could tell that the genius on show was Rutherford's rather than Berio's."