Being of Romanian-Jewish descent, Blanc had to be hidden during the years of Nazi occupation shortly after he passed the entrance exam, by his teacher Jules Boucherit, who was named Righteous Among the Nations for having protected Jews during the WWII.[3][4] Boucherit and Claude Delvincourt, then the conservatories director and a resistance fighter, still organized public recitals for boy.[1]
In 1941, at age eleven, he played as a soloist with the Orchestra of the Colonne Concerts conducted by Louis Fourestier.[1] At age thirteen, he played Mozart's Violin Concerto No. 2 and Saint-Saëns's Havanaise with the Pasdeloup Orchestra. He played another recital at the Salle Gaveau at age 15, which was praised by the press, and musicians such as Alfred Cortot with whom he played violin sonatas by Reynaldo Hahn and Gabriel Fauré in concert.[1]
Adult career
In both 1946 and 1947, Blanc was sent on official tours by the Ministry of Fine Arts, to represent France in Europe. In 1949, he won the Long-Thibaud-Crespin Competition. He met George Enescu who influenced him for a long time, and with whom he played in concert at the Salle Gaveau.[5][page needed] He also collaborated with Nadia Boulanger until she died in 1979.[1]
Blanc was professor at the École normale de musique de Paris where he created the chamber music class. Then he was violin and chamber music teacher at the Conservatoire de Paris, and gave private lessons where he taught mainly chamber music. Based on the teaching by Enescu, Blanc collected and annotated Bach's Sonatas and Partitas for Solo Violin, which Enescu called "the Himalayas of the violinists". Having studied them for half a century, he published a pedagogical edition with recommendations for phrasing, tempo, fingering, and expression.[9]