Yamaha YEP-621 Euphonium, Bb Euphonium@+The YEP-621 produces a powerful and warm sound, a precice intonation and is easy to play. Characterised by a steady and concentrated tone, the YEP-621 is a diverse instrument, which is just as suited for ensemble playing, as it is for solo playing.@+@+, 4-Valve (4th valve is located on the side), Bell: 280 mm, Bore: 14.5 to 16.8 mm, Brass has been coated with a layer of lacquer, Includes a Yamaha 51L mouthpiece and case