Georges Ivanovich Gurdjieff Thomas de Hartmann: Music For Piano 3 Hymns Prayers:

G. I. Gurdjieff travelled for many years through Central Asia and the Middle East collecting melodies and ritual dances which his friend and pupil Thomas de Hartmann wrote down and arranged as piano pieces.(Vol. 1 = ED 7841 Vol. 2 = ED 7842)CD recordings:Vol. 1 = WER 62842Vol. 2 = WER 62922 Vol. 3 = WER 66252 Vol. 4 = WER 66432