Okay, a reunited Rage Against the Machine and Bjork? How could I not go to Coachella this year. The lineup proves that nostalgia for the early ’90s is firmly back in place. I relive that pivotal pop and political period in Mamarama; fellow music critic Rob Sheffield rhapsodizes about it in his memoir, Love Is a Mixtape; and I talked about in my interview yesterday with Yo La Tengo guitarist Ira Kaplan (to be published in Friday’s Herald Weekend section). Kaplan, in typical Kaplan fashion, was skeptical of such thinking. I generally don’t like nostalgia either. But it’s interesting to see a period that was perhaps little understood when we were all in its thrall/enthralled get revisited/revived.