Their final American concert was held at Tanglewood on 21 August 2008 .
They made their debut on 13 July 1955 , at the Berkshire Music Festival , Lenox , Massachusetts , United States , known today as the Tanglewood Music Center .
Their final United States concert was held at Tanglewood on 21 August 2008 .
They made their debut on 13 July 1955 , at the Berkshire Music Festival , Lenox , Massachusetts , United States , known today as the Tanglewood Music Center .