Beacham, Richard C. (May 1985). "Appia, Jaques-Dalcroze, and Hellerau, Part One: 'Music Made Visible'". New Theatre Quarterly. 1 (2): 154–164. doi:10.1017/S0266464X00001524.
Beacham, Richard C. (August 1985). "Appia, Jaques-Dalcroze, and Hellerau, Part Two: 'Poetry in Motion'". New Theatre Quarterly. 1 (3): 245–261. doi:10.1017/S0266464X00001639.