From gibson's website:"Les Paul, acclaimed guitar player, entertainer and inventor passed away today from complications of severe pneumonia". That is sad news indeed. Of course many people know the Gibson guitar named after him, but I wonder how many computer musicians today know how much of a legacy they owe to Les Paul. Many of the technologies that are taken for granted today are invented or vastly improved by him. The most far-reaching is probably multitrack recording, but he also made a huge contribution to guitar effects.