Gabriel Fauré's "Sicilienne, op.78" arranged for 2 cellos by Eric Moore.

The second part is an accompaniment intended to be used instead of piano - it is richly-orchestrated and floating.

Also look for the other standard French Showpieces arranged for 2 Cellos as a digital download!
Allegro Appassionato | Apres un Reve | Elegie | Papillon | The Swan