The Music of Gurdjieff/de Hartmann. Thomas de Hartmann, piano (3 compact disc, sold as a set , or 4 cassettes), ECM Records GMBH, Munich, distributed in the United States by Triangle records.

Anthology of the Gurdjieff/de Hartmann Music. Alain Kremski, piano. (5 compact discs, sold separately in five volumes, one of which is a double), Editions AudivisValois, Paris, 1990

G.I. Gurdjieff/Thomas de Hartmann, The complete Piano Works, Played by Linda Daniel-Spitz,Charles Ketcham, and Laurence Rosenthal. Released by Wergo Shallplatten, Mainz, Germany.

Volume I: Asian Songs and Rhythms 1997
Volume II: Music of the Sayyids and the Dervishes, 1998
Volume III: Hymns, Prayers and Rituals, 1999
Volume IV: Hymns from a Great Temple and other Selected Works, 2001