求女低音的古典音乐片段，最好是独唱

没有女低音的说法，要女中音的古典这里有些：
http://www.youtube.com/watch?v=wN3Rqhmd3Nk
http://www.youtube.com/watch?v=Q9LiyM3ZwxA
下面是歌剧里的女低音角色，逗号后边是歌剧名，括弧里是作曲家。您自己按图索骥就行了~
The Baroness, Vanessa (Barber)
La Cieca, La Gioconda (Ponchielli)
Erda, Das Rheingold, Siegfried (Wagner)
Katisha, The Mikado (Gilbert & Sullivan)
Maddalena, Rigoletto (Verdi)
Mary, Der fliegende Holländer (Wagner)
Olga, Eugene Onegin (Tchaikovsky)
Orfeo, Orfeo ed Euridice (Gluck) -- trouser role
Lel, The Snow Maiden (Rimsky-Korsakov)
Pauline, The Queen of Spades (Tchaikovsky)
La Principessa, Suor Angelica (Puccini)
Ruth (Pirates of Penzance)
Ulrica, Un ballo in maschera (Verdi)
Widow Begbick, The Rise and Fall of the City of Mahagonny (Kurt W