The “Dry Spell” singer recently and unexpectedly canceled a handful of dates on her upcoming tour, including one scheduled in our region. No reason has been given for the cancellations, and Musgraves has not publicly addressed the changes on her official social media accounts. Ethan Miller, Getty Images Ethan Miller, Getty ImagesThe tour supports Musgraves’ latest album, “Middle of Nowhere,” which was released May 1st. Tickets remain available for alternate shows in Chicago, Boston, and New York, and the tour is still scheduled to begin August 21st in Chicago. One of the three concerts Kacey Musgraves canceled was originally scheduled for August 29th at TD Garden in Boston.