Follow the videos in order and learn how to use circular breathing. Circular breathing is an essential part of playing instruments like the Didgeridoo but can be useful for many other instruments: woodwind, brass, etc. Clear Lectures / Videos It's available for PC or MAC and there is an iPad and iPhone app ready to go! (Android app is coming soon). Keeping track of which videos(lectures) you have already watched is so easy. Udemy has a great way of keeping track of your completed lessons(lectures). The entire course is organized in step-by-step and easy to follow layout.