How often are new songs and Bootcamp lessons added to the application? Dave June 21, 2018 22:00 Updated Our team works hard to add a couple of new songs to our Song Store each week, and new Bootcamp content every two months. Related articles Should I go through all of the Bootcamp lessons first, then play songs? Does Playground Sessions teach music theory? Or just songs? Are Playground songs true to their original versions? I'm seeing a 4/2 time signature at the Rookie level. What is that? What are Courses and how do I unlock them? Comments 0 comments Article is closed for comments.