When it comes to our current era, there are plenty of things to complain about. But at least it’s an era when we have free access to two amazing artists at the peak of their professional powers. Both were on display this weekend. First, check out Kendrick Lamar’s two mesmerizing performances on SNL (with a big hat tip to the lighting director). Rich Spirit/N95 and Father Time featuring Sampha. And then set aside an hour or so to experience what could be modern music’s most powerful voice as Brandi Carlile blows past Austin City Limits.