It was generally believed, said Theophilus, that Orpheus learned his music from the birds. His small voice, piping after theirs, filled with all the secret stories of the earth.

Time slipped and slid around him, unanchored by any fact that could be verified. Perhaps it did not matter. 'Where does our story take place, and when?' asked Cocteau at the start of Orphée. 'It's the privilege of legends to be ageless. Comme il vous plaira. As you please.

Tuning must come first. Each recital begins with a careful tightening of the pegs on the cross-bar, twisting them in their socket of red threads as each string is plucked and tested. He uses his thumb for this, softer and subtler than the plectrum, his head bent to the vibrating string and his lips slightly open, breathing quickly, as over the body of a lover.

His teachings, said his disciple Musaeus, had one simple theme: 'Everything comes into being from the One and is resolved into the One again.