2011-03-292024-06-222011-03-292024-06-221980-02-021980-02-02Betty Ruth Tomfohrde, piano and Sumiyo Ender, soprano (performer). "Botschaft." (1980) Shepherd School of Music, Rice University: <a href="https://hdl.handle.net/1911/59821">https://hdl.handle.net/1911/59821</a>.https://hdl.handle.net/1911/59821Copyrighted material. All rights reserved.Songs (High voice) with pianosound recording-musical