Es Alto trombone made by Helmut Voigt 2005 new shape never used
The model is made before Aline Nistad and is based on the model HV-A1 with sylindrical slide. It is a result of a collaboration with Aline Nistad (1954 – 2017), Docent at the musical college of Oslo and a solo trombonist in the Oslo Philharmonica. The instrument is equiped with a changeable Quart valve, and a separate “Gooseneck” is also included.