Last year Dr. Anthony Ancell, offered his OPD students during the OPD Foundations Course an amazing performance. He brought in a brilliant Colombian didgeridoo player. Dr. Ancell makes a great enphasis in the importance of breathing correctly to allow all the body functions to be performed with the best level of efficiency. Master tuba player am Pilafian and Patrick Sheridan from Official Breathing Gym shared in one of their latest videos new techniques for better breathing for band members to play your best. They can be somehow weird and funny but it seems their techniques are very effective. Enjoy! www.woollahradental.com source: OPD Foundations Course 2016 and The Breathing Gym.