His first appointment in 1951 was with the Hallé Orchestra under Sir John Barbirolli .
His first appointment in 1951 was with the Hallé Orchestra , conducted by Sir John Barbirolli .
Between 1995 and 2000 she spent performing and studying chamber music at the Marlboro Music Festival in Vermont , and in 1996 she served as an artist and a member of the chamber music mentoring program of The Chamber Music Society of Lincoln Center .