Yamaha Alto Sax Synthetic ReedGet ready for new standard in playability and performance: The ASR Series of Synthetic Reed for Alto Saxophone. Original Yamaha Material and ShapeIn addition to easy playability and sound production, these synthetic reeds give beginning players low resistance with appearance and texture that are similar to natural reed. 1) Material: A new formulation based on fibrous material. Similar tone to natural reed. 2) Texture: Simulated reed texture for