Isaac Stern called him a doctor for violins and Yo Yo Ma said there was no-one he would trust more if he needed surgery. All of Ivan Galamian’s best pupils at Juilliard went to him with their instrumental aches and pains. Others came from as far off as Peabody. René Morel had time for them all, even the violas. Especially the violas.
A Frenchman, descended from a long line of luthiers, he came to New York in 1955 after service in the French air force and never left.
Here‘s a full appreciation on violinist.com.