Thomas de Hartmann: Orchestral Music | Toccata Music Group | Toccata Classics | Toccata Press | Toccata Next
Thomas de Hartmann | Spotify
Thomas de Hartmann (Composer, Arranger) - Short Biography
Thomas De Hartmann | Discography | Discogs
Song of the Fisherwomen - Gurdjieff - De Hartmann (1920) Sheet music for Piano (Solo) | Musescore.com
MAJOR DISCOVERY ALERT! Sensational de Hartmann Orchestral Works from Kuchar/Lviv on Toccata Classics - YouTube
Hartmann's operation - Wikipedia
Thomas de Hartmann (1885-1956) : "Rituals of a Sufi Order" piano (3 extracts) - YouTube
The Music of GURDJIEFF / de HARTMANN Hymns, Prayers and Dances - YouTube
Fabulous de Hartmann Premieres on Toccata from Kuchar and the Lviv Philharmonic - Classics Today
On Olga de Hartmann
The Thomas de Hartmann Project
Thomas de Hartmann (Composer, Arranger) - Short Biography
On Olga de Hartmann
Gurdjieff / De Hartmann – The Music Of Gurdjieff / De Hartmann (1985, Vinyl) - Discogs
Gurdjieff / De Hartmann: Complete Music for the Piano - YouTube
The Gurdjieff Legacy Foundation Archives
Why Has Ukranian Composer Thomas de Hartmann Been So Neglected?
Thomas de Hartmann: A Composer's Life
The Music Of Gurdjieff / De Hartmann | Light In The Attic Records
