Today I've gone for a Bach Chaconne, Partita No. 2 in D minor BWV 1004 originally composed for a violin (probably solo) but transcribed for four cellos.

Bach Chaconne for Four Cellos - Cleveland Institute of Music Faculty Recital (02/06/15)
Brian Thornton, Cleveland Orchestra Member
Jennifer Son, Student guest artist
Jared Blajian, Student guest artist
Melissa Kraut, Faculty Cleveland Institute of Music