On this day in music history: July 25, 1965 - Bob Dylan performs an “all electric” set at the Newport Folk Festival with Mike Bloomfield and members of the Paul Butterfield Blues Band backing him up. The act of a folk musician playing an electric guitar is considered by the audience to be musical heresy, and react negatively by booing Dylan. He will leave the stage after just three songs. The incident will inspire Dylan to write and record the song “Positively 4th Street” four days later, a rebuke of former friends in the folk music community who have criticized him for “going electric”. Bob Dylan will accidently leave the guitar that he plays during his set at Newport behind on the private chartered plane he travels from the venue on. The sunburst 1964 Fender Stratocaster thought to have been lost for over four decades, is found in the possession of the pilot’s family in 2012. The guitar will be found with several sheets of paper in the case containing early drafts of several unfinished songs. The instrument will sell at auction (from Christie’s auction house) for a record breaking $965,000 (to an anonymous bidder) in December of 2013. It surpasses the amount paid for the previous record holder, Eric Clapton’s black Fender Stratocaster nicknamed “Blackie”, which had sold for $959,000 in 2004.