2011-03-292024-06-222011-03-292024-06-221980-03-111980-03-11Knut Skram, baritone and Eva Knardahl, piano (performer). "Eri tu : from "Un ballo in maschera"." (1980) Shepherd School of Music, Rice University: <a href="https://hdl.handle.net/1911/61008">https://hdl.handle.net/1911/61008</a>.https://hdl.handle.net/1911/61008Copyrighted material. All rights reserved.Operas--Excerptssound recording-musical