Volume 6 of the Gunter Raphael Edition, released as a double album, includes Raphael's entire chamber music oeuvre featuring the flute. The ten pieces, of varying character, can be divided into three creative periods. Most of them belong to the "transitional period" and the key development of his style since the 1930s. In his early and late stylistic periods, the composer only rarely used the flute as a chamber music instrument. Three of the works are recorded here for the very first time, among them the highly original Triptychon Maria for alto, flute, violin, viola and cello written by Raphael in 1943 for the birth of his second daughter Maria Christine using medieval lyrics.