0
Lisa Della Casa
Swiss soprano (1919-2012)
1
Siegfried Vogel
German opera singer
2
Barbara Scherler
German mezzo-soprano and contralto
3
Lucia Popp
Slovak operatic soprano
4
Christa Ludwig
German mezzo-soprano
5
Sena Jurinac
Female opera singer
6
Elisabeth Schwarzkopf
German opera soprano
7
Roberta Knie
singer
8
Ilse Hollweg
German singer and opera singer
9
Robert Schunk
German singer and opera singer
10
Hanna Ludwig
German singer and opera singer
11
Montserrat Caballé
Spanish operatic soprano
12
Patricia Johnson
British operatic mezzo-soprano
13
Eike Wilm Schulte
German operatic baritone
14
Ute Trekel-Burckhardt
German singer and opera singer
15
Delores Ziegler
American singer
16
Norma Sharp
American soprano, Professor of voice
