The Sarabande from Bach Cello Suite no. 6, performed by Yo Yo Ma.
And the subsequent Gavotte, from the excellent recent recording by David Watkin:
Some chamber music to close out the week – Brahms Piano Quartet no. 1, Op. 25:
Performed here by a rather all-star cast of Emanuel Ax (piano), Isaac Stern and Jaime Laredo (violin) and Yo-Yo Ma (cello).