Renata Tebaldi, 82, Soprano With 'Voice of an Angel,' Dies
Soprano Renata Tebaldi, one of most beloved opera singers of all time, dies at age of 82; conductor Arturo Toscanini claimed she had 'the voice of an angel'; her distinguished career recalled; her final performance was at Met, as Desdemona in Verdi's Otello in 1973; photos (L)