Concerto for Free Improvising Alto Saxophonist and Jazz Orchestra is a thirty-minute piece written for standard 17-piece jazz orchestra and improvising alto saxophone soloist. It is cast in the form of a classical concerto with three movements in fast-slow-fast order. The composition brings together gestures, formal concerns, and performance practices from the traditions of jazz, free improvisation, and classical music. Central to the aesthetic concerns of the work is the incorporation of improvised material into the composition. The piece was written for and draws much of its inspiration from the individual stylistic traits and artistry of improvising saxophonist Frank Gratkowski. Most of the music played by the soloist and the rhythm section of the orchestra is improvised. Improvised parts exist to a lesser degree in the music written for the horn sections of the orchestra. The music for the orchestra draws upon conventions of the modern jazz ensemble in both style and performance practice. Improvised parts written for the orchestra mainly follow the conventions of standard jazz notation while the improvisations of the soloist are of a more free nature.