LONDON (Reuters) - Two "lost" songs by British classical music composer Edward Elgar have been unearthed by researchers for a charity dedicated to the performance of his works. Elgar Works director John Norris said he delved into the "Land of Hope and Glory" composer's sketch book in the British Library to reveal completed songs "The Muleteer's Serenade" and "The Millwheel". Norris said he knew there were sketches for the two songs incorporated into the composition notes for Elgar's 1896 cantata "King Olaf", but it was thought that there were no original complete songs in existence. ...