The trio album s'Zwitscherl is the result of a unique musical collaboration across continents featuring musicians from three different nations (Switzerland, Germany, and Japan) playing Romantic, 20th, and 21st Century music for two clarinets and piano. Rolf Weber is solo clarinetist at the Staatstheater am Gartnerplatz in Munich. He is joined here by Barbara Heilmair, associate professor for clarinet and music history at the Portland State University School of Music, and Kazue Weber-Tsuzuki, concert pianist and renowned teacher.