The joint ensemble performed works including Brahms's Symphony No 1 and Bizet's Carmen.

BBC: Unhasu Orchestra play with Radio France Philharmonic

The film will feature Sir Simon Rattle conducting the Berlin Philharmonic performing Mahler's Symphony No 1 and Rachmaninov's Symphonic Dances.

BBC: Sir Simon Rattle

He works with low level electronics and he's about to release the 1-bit Symphony on a single microchip, housed in a CD case.

BBC: How computer games are creating new art and music