It was a Friday night in 1980, December 5th to be exact: the Warfield stadium in San Francisco filled up lazily. The stage that was being set up was simple: three small wooden chairs, three microphones with the booms set at rather low height.Here comes the first hero of the evening on stage, the living legend Al Di Meola, with an outfit that smacks of a modern cowboy..His trusty acoustic guitar is placed on an easel next to one of the chairs. pick up the mic and.....