The 2020 Coachella Valley Music and Arts Festival has been postponed due to the coronavirus. The Indio, California, fest has been pushed back to the weekends of Oct. 9-11 and Oct. 16-18 from its original dates of April 10-12 and April 17-19, promoter Goldenvoice announced Tuesday. Its country counterpart, Stagecoach, will also be moved to Oct. 23-25. “At the direction …