- 1923 – Erinnerungen an Gustav Mahler by Natalie Bauer-Lechner (1858-1921). In Médiathèque Musicale Mahler.
- Fragment (Audio, German, duration 01:55): Anna Justine Mahler (Gucki) (1904-1988) about her mother Alma Mahler (1879-1964).
- Fragment (Audio, German, duration 02:51): Anna Justine Mahler (Gucki) (1904-1988), Milan Dubrovic (1903-1994), Gina Kaus (1893-1985), Walter Gropius (1883-1969), Ernst Krenek (1900-1991), Marietta Torberg (see Friedrich Torberg (1908-1979)) and Oskar Kokoschka (1886-1980) about Alma Mahler (1879-1964).
- Fragment (Audio, German, duration 01:32): Ernst Krenek (1900-1991) about Alma Mahler (1879-1964) and her daughter Anna Justine Mahler (Gucki) (1904-1988).
- Fragment (Audio, German, duration 01:28): Marietta Torberg (see Friedrich Torberg (1908-1979)) about her friendship with Alma Mahler (1879-1964), New York.
- Fragment (Audio, German, duration 01:04): Milan Dubrovic (1903-1994) about Alma Mahler (1879-1964)‘s appearance.
- Fragment (Audio, German, duration 00:31): Gina Kaus (1893-1985) about Alma Mahler (1879-1964)‘s bad character.
- Fragment (Audio, German, duration 12:31): Soundtrack of a film about Alma Mahler (1879-1964) by Albrecht Franz Joseph (1901-1991), Los Angeles. Joseph married Anna Justine Mahler (Gucki) (1904-1988) in 1970.
- Fragment (Audio, German, duration 01:48): Oskar Kokoschka (1886-1980) about about his life.
- Fragment (Audio, German, duration 00:11): Walter Gropius (1883-1969) statement on Bauhaus.
- Fragment (Audio, German, duration 01:21): Franz Werfel (1890-1945) recites “Der schöne strahlende Mensch”.
- Fragment (Audio, English, duration 06:33): Bruno Walter (1876-1962) speaks about Gustav Mahler.
- Recollections Alma Mahler.
All fragments and more on You Tube page Gustav Kaliste.