What technique involving the ability to avoid unnecessary muscular tension by retraining physical movement reactions was taught by Nelly Ben-Or?
Nelly Ben-Or:  She is an international concert pianist and a Professor at the Guildhall School of Music and Drama where she has taught the piano and the Alexander Technique since 1975. Alexander Technique:  Alexander believed the individual's spatial self-awareness was related to psychological conditioning; questionably trained foundation habits of posture can be unsuitably added into procedural skills.
Alexander Technique