The godfather of improvisational guitar, Derek Bailey’s praises have been sung far and wide by everyone from Pat Metheny to Karlheinz Stockhausen for having revolutionized the way the instrument was played over the last half of the twentieth century. Although fans are often frustrated by the low-fidelity of his earlier recordings, this 1975 LP (originally released on the Italian avant-garde label, Cramps), stands out in that regard. Recorded in an actual studio (unlike most of his early work) in Milan, for this session Bailey was apparently asked by his Italian hosts to define “improvisation”. The making of "Improvisation" work took about three years; this record contains 14 tracks: eight with electric guitar, five with six-string acoustic guitar, and one with nineteen-string acoustic guitar.