Johann Christian Henschke planted a small vineyard and an orchard, releasing his first commercial vintage in 1868, believed to be principally riesling and shiraz. In the 1960s Cyril Henschke established a large planting in the Eden Valley which today is the source of Shiraz fruit which forms the backbone of Keyneton Euphonium. A mostly Shiraz wine with smaller components of Merlot, Cabernet and Cabernet Franc, grown to the Eden and Barossa Valleys is vinified at the Henschke Road wineworks at Keyneton into a soft, easy to enjoy wine. Components are treated to maturation in a combination of new and prior use French and American oak hogsheads for eighteen months.