The inside story is that I listen to Iyer’s music all the time and had spent a good deal of time with Mutations and I didn’t get music on the Carter recording until 72 hours before I began writing (I wasn’t sure of the contact). The Carter recording continued several thematic elements in her work, so it was easy to describe, whereas Iyer’s music wasn’t at all to my ears like his trio and solo work, so it was more of a challenge as a writer. In addition, after the boilerplate and the Regina segment I had about 100 words to dwell on Mutations. I’m not sure I did it justice.
Nonetheless, both are interesting musicians with interesting new recordings. Here are my thoughts. http://on.wsj.com/1fZdO6A