嘗て存在した先鋭的な音楽集団 日本現代・ジャズ・音楽研究会,J Jazz - Free and Modern Jazz From Japan 1954-1988,New rare piece in store: “J JAZZ: Free & Modern Jazz Albums,Experimental free jazz guitarist Masayuki Takayanagi's 1975,New rare piece in store: “J JAZZ: Free & Modern Jazz Albums