by Matthew Raley [youtube=http://www.youtube.com/watch?v=4_b8T1-SWkM&feature=related]

No comment needed.

by Matthew Raley [youtube=http://www.youtube.com/watch?v=Z3vQWvRNeps]

Here are the masters joking, then performing.

The piece is the Passacaglia by G.F. Handel, arranged by Halvorsen, a relatively unusual duet for violin and viola.