| 1987 | The Complete Piano Music of Georges I. Gurdjieff and Thomas de Hartmann, Vol. 1: Seekers of The Truth | Georges I. Gurdjieff, Thomas de Hartmann; Cecil Lytle | | 1 |
| 1988 | The Complete Piano Music of Georges I. Gurdjieff and Thomas de Hartmann, Vol. 2: Reading of a Sacred Book | Georges I. Gurdjieff, Thomas de Hartmann; Cecil Lytle | | 1 |
| 1989 | The Music of Gurdjieff / de Hartmann | Georges I. Gurdjieff, Thomas de Hartmann | | 1 |
| 1989 | Vol. 3 - Chants Religieux / Sacred Hymns | Georges I. Gurdjieff, Thomas de Hartmann; Alain Kremski | | 1 |
| 1990 | The Complete Piano Music of Georges I. Gurdjieff and Thomas de Hartmann, Vol. 3: Words for a Hymn to the Sun | Georges I. Gurdjieff, Thomas de Hartmann; Cecil Lytle | | 1 |
| 1990 | Vol. 6 - Rituel d'un Ordre Soufi / Ritual of a Sufi Order | Georges Ivanovitch Gurdjieff, Thomas de Hartmann; Alain Kremski | | 1 |
| 1997 | Music for the Piano Volume I: Asian Songs and Rhythms | Georges I. Gurdjieff, Thomas de Hartmann; Linda Daniel-Spitz, Charles Ketcham, Laurence Rosenthal | | 1 |
| 1998 | Music for the Piano Volume II: Music of the Sayyids and the Dervishes | Georges I. Gurdjieff, Thomas de Hartmann; Linda Daniel-Spitz, Charles Ketcham, Laurence Rosenthal | | 1 |
| 1999 | Music for the Piano Volume III: Hymns, Prayers, and Rituals | Georges I. Gurdjieff, Thomas de Hartmann; Charles Ketcham, Laurence Rosenthal | | 1 |
| 1999 | Music for the Movements | Georges I. Gurdjieff, Thomas de Hartmann; Wim van Dullemen | | 1 |
| 2001 | Music for the Piano Volume IV: Hymns from a Great Temple and other Selected Works | Georges Ivanovitch Gurdjieff, Thomas de Hartmann; Charles Ketcham, Laurence Rosenthal | | 1 |
| 2002 | Retour de voyage | Georges Ivanovitch Gurdjieff, Thomas de Hartmann; Alain Kremski | | 1 |
| 2021 | Complete Music for the Piano | Gurdjieff / de Hartmann; Jeroen van Veen | | 1 |
| 2022 | Orchestral Music | Thomas de Hartmann; Bülent Evcil, Lviv National Philharmonic Orchestra Of Ukraine, Theodore Kuchar | | 1 |
| 2022 | Orchestral Music, Volume Two | Thomas De Hartmann; Leon Bosch, Lviv National Philharmonic Orchestra Of Ukraine, Theodore Kuchar | | 1 |
| 2024 | Thomas de Hartmann Rediscovered | Thomas de Hartmann; Joshua Bell, INSO-Lviv Symphony Orchestra, Dalia Stasevska, Matt Haimovitz, MDR Leipzig Radio Symphony Orchestra, Dennis Russell Davies | | 2 |
| — | Chercheurs du Verite | Georges I. Gurdjieff, Thomas de Hartmann | | 1 |
| — | Dervishes trembleurs | Georges I. Gurdjieff, Thomas de Hartmann; Alain Kremski | | 1 |
| — | Hidden Sources | Georges I. Gurdjieff, Thomas de Hartmann; Alessandra Celletti | | 1 |
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