What kind of music is "Free music"? The answer to that is not easy. However, looking at the music scene in the 20 years between 1960-1980, it would be safe to say that "Free Jazz" and "Collective music in Contemporary music" did fit the bill of "Free music" 1.Season of the change TERUTO SOEJIMA 2.From free Jazz to Free improvisation KAZUE YOKOI 3.To the AACM dash diary SABU TOYOZUMI 4.Improvisation and Record Onnyk KINNO 5.An essay for the liner note...