With a Fobes Debut mouthpiece on Mitchell Lurie reeds, a setup very easy to play. This is for myself and the 4th horn we are getting. The other two are cheap plastic horns but surprisingly easy to play and good sounding, a rare find. That's why I bought two, one on each floor literally. I can go from E3 to F6 on chromatic scale in 10 seconds. My daughter runs faster. We also tried M15 and 5 RV lyre so far Debut still is our favorites for practice. Maybe we can better exploit their potentials with this new horn.