| Second, it looks like clarinetist Adam Berkowitz is going to talk about multiphonics in his upcoming book Four Extended Techniques for Clarinet: A Practical Guide. |
| He uses extended techniques for the saxophone, such as multiphonics, slaptongue and circular breathing. |
| In the following video, he demonstrates four types of multiphonics. |
| Two pieces which bring into play different approaches to the instrument: key notes, flutter-tongue, multiphonics. |
| The four sound files are available on freesound: Clarinet multiphonics. |
| Beginning with very general considerations, the author of this treatise has investigated the most recent techniques, from multiphonics to circular respiration, and has systematized their use. |
