The late music man won Grammys for his work with Madonna and Alanis Morissette. David May holds his award for Best Long Form Music Video for Madonna's "The Confessions Tour" at the 50th Annual Grammy Awards in Los Angeles February 10, 2008. Lucy Nicholson/Reuters Trending on Billboard David May, a two-time Grammy Award-winning producer and long-time executive with Warner Music Group, passed away April 13 in Nashville, TN, at the age of 68. May died of natural causes, reps say. In the studio, May was blessed with creative vision, deep technical expertise and a knack for archival preservation, and he used those gifts to pursue new audio formats and for mastering. Related During his lifetime, May worked closely with many notable artists, including Metallica, Eric Clapton, Neil Young, Josh Groban, R.E.M., Cream, Green Day, Stevie Nicks, Led Zeppelin, Eagles, Linda Ronstadt, Michael Bublé, and George Harrison, for projects that ranged from studio sessions to live arena performances.…