Conversation so far:
What was Anton Rubinstein's technique?
immense sonority and technical grandeur in which all too often technical sloppiness.
What did the critics say about his technique?
critic Harold C.
Schonberg describes Rubinstein's playing as that "of extraordinary breadth, virility and vitality, immense sonority and technical grandeur.
Who did he learn his technique from?
From watching Liszt, Rubinstein had learned about freedom of arm movement.
Did he teach anyone else his technique?
His mother, a competent musician, began giving him piano lessons at five.
Did he play any other instruments?
CANNOTANSWER.
What else can you tell me about this article?
Later that year Rubinstein's mother sent him, accompanied by Villoing, to Paris where he sought unsuccessfully to enroll at the Paris.

Question: Where was he trying to enroll?
Self-contained rewrite: Where was Anton Rubinstein's trying to enroll in Paris?