The 64th Grammy Awards will occur on Sunday, April 3 in Las Vegas. Here are the categories, nominees, and eventually, winners, for the classical, jazz, and world music fields.

An hour-long piece for baritone and orchestral septet, the work depicts with unrelenting intensity the horrors of war and the PTSD faced by many returning veterans.

“It has been said that a society can be judged by the way it treats its animals,” composer David T. Little says in the program notes for his chamber opera, Dog Days. Based on a short story by Judy Budnitz, the opera is set in a war-torn future that’s not too far away from our own time.

General director Ashley Magnus exclaims that “to ensure that opera stays relevant as a living art form, we must bring contemporary voices, as well as works of international prominence never before seen in Chicago to the stage.”