The quality of Yamaha instruments is known the world over. Their alto horns are no exception. Consistent, durable construction gives this alto horn execllent response and reliable intonation, while being extremely easy to play. The YAH203 Eb Alto Horns An excellent intermediate instrument Durable construction, combined with the type of sound needed to perform the necessary role in the brass band setting, make the 203 an excellent choice.Pistons Three nickel-alloy nickel-plated pistons resist corrosion and are durable. Hand-lapped valves and pistons Hand-lapping is a time-consuming finishing process which results in an airtight valve/piston fit for noiseless, responsive action Pressure formed tubing Perfectly rounded tubing results in less turbulence and a smoother air flow, thus allowing for an excellent scale and reduced resistance. Laser-fused pluzuma welded bell A high-energy laser fuses the brass together for a virtually seamless bell which allows continuous even vibrations.