One thing that I feel when the artist or original writer is present is that the conversation becomes about the process than the product.
I have really enjoyed diving into Strong Songs on your recommendation this year. If you are looking for an artists reaction to the breakdown of their song, you might want to check out the Switched on Pop podcast. In particular, the episodes featuring Shea Diamond and Justin Tranter, Carly Rae Jepsen, Justin Tranter and Ian Kirkpatrick (on Selena Gomez), and FINNEAS.