Does anyone practice circular breathing and if so do you apply it to trumpet playing? I recently read some information on circular breathing from the internet and was quite intrigued. I went home after work, picked up a drinking straw from the gas station, and began to try the circular breathing technique. I used the straw in a cup of water and attempted to keep the bubbles flowing steadily and constantly. I picked the technique up quickly and I was able to keep it going once for five minutes. I then tried to apply this just with the mouthpiece but it is tremendously difficult to keep the buzz with just the air in your cheeks while simultaneously breathing in. I have read that some good players use it but that it takes years to master. I would like to know of anyones experience or opinions regarding circular breathing.