Yamaha YTS-580AL Allegro Model Tenor Saxophone Outfit Offering many features of more advanced professional models, the Yamaha Allegro line of brass and woodwinds is the next logical step in your child's musical progression. High quality yet value-conscious, these elegant instruments are backed by a full 7-year warranty and the legendary Yamaha name. Recommended by band directors the nation over, these precision horns reflect Yamaha's commitment to the musical future of your child. Step up the learning tempo. Step up to Allegro.