One of J S Bach's most technically challenging secular works - the Chaconne from his Partita for Solo Violin in D minor - may conceal the secrets of his genius and spirituality.
In this programme violinist Paul Robertson explores his own relationship with just one of these works - the Partita in D Minor, and in particular the monumental ""Chaconne"" last movement.
Told as a student that it should be learnt as a technical study then retired to the bottom draw, Robertson was nevertheless captured by Bach's most ethereal music.
He found that digging deep below its surface brought more questions than answers.
Robertson is leader of the Medici String Quartet.
For the past twenty years he has collaborated with leading scientists to explore the neurological and scientific basis for music.
This programme will bring together all the elements - the science, music, dance, culture and spirituality - to reveal an integral and connected world view very different to our own.