CAUX, Switzerland (Reuters) - Bob Dylan, Van Morrison and Anita Baker return to the Montreux Jazz Festival for the 46th edition that founder "Funky" Claude Nobs hopes will go on into the early hours with improvised jam sessions. New talents Lana Del Rey and Ed Sheeran, as well as veterans Jane Birkin, Chick Corea, Herbie Hancock and Tony Bennett are also booked at one of Europe's most prestigious music festivals that runs from June 29-July 14 along the shores of Lake Geneva. ...