Louis Horst
https://www.britannica.com/biography/Louis-Horst
https://www.dance-teacher.com/louis-horst-2392289666.html
Louis Horst was Martha Graham's musical director. While Graham is well known for her epic body of work, her greatest contribution may be the dance technique that she invented. This video contains a demonstration of that technique and a performance of "Night Journey" one of the many dances she created based on Greek Mythology
Find out more about Martha Graham - http://www.marthagraham.org/
