Podcast:Popcast Published On: Fri Oct 27 2017 Description: Changes to the formulas used to build albums and singles charts will weigh paid streams more than free ones. What will the impact be? Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify. You can also subscribe via your favorite podcast app here https://www.nytimes.com/activate-access/audio?source=podcatcher. For more podcasts and narrated articles, download The New York Times app at nytimes.com/app.