Yamaha YAH803S Tenor Horn Silver PlatedNeo Series, Key: Eb, Material: Yellow brass, Valves: 3 top action, Bell: 210mm (8. 071") , Bore: 11. 9mm (0. 469"), Finish: Silver plated. Over her successful playing career, Sheona White has probably done more to popularise the Tenor Horn than any other exponent. Now, the BBC Radio 2 Young Musician of the Year 1996 has her sights set on a potentially longer lasting legacy. Her partnership with Yamaha has resulted in a radical re think of horn design.