LOS ANGELES—This year’s Grammy Awards ceremony honoring top performances in music has been postponed indefinitely because of the spread of the Omicron variant of the coronavirus, organizers said on Wednesday. The show had been scheduled to take place at an arena in downtown Los Angeles and broadcast live on the CBS network on Jan. 31. “Given the uncertainty surrounding the Omicron variant, holding the show on January 31 simply contains too many risks,” CBS and the Recording Academy said in a joint statement, adding that a new date would be announced soon. Nominations for the awards were announced in November. The 2021 Grammy awards also were postponed because of the COVID-19 pandemic. The ceremony was staged in March instead of January and included a mix of pre-recorded and live segments in front of a small, socially distanced crowd. Organizers had hoped to return this year to something closer to the …