The wonderful Margarete Klose is presented in arias and scenes from:

Orfeo,Tristan und Isolde, Alceste, Samson et Delilah, Don Carlo, Gotterdamerung, Il Trovatore, Un Ballo in Maschera, Lohengrin, Elektra, Die Walkure     (64 min.)

An exciting comparison of various singers in the Macbeth Letter Aria from Act One. Included are:

Leonie Rysanek, Birgit Nilsson, Regina Resnik, Christa Ludwig,
Leyla Gencer, Shirley Verrett, Maria Callas, Rita Hunter, and
if you go to the following link, you can see the CBC video of this scene with Marisa Galvany.    (71 min.)

http://video.google.com/videosearch?q=Maria+Galvany&hl=en&emb=0&aq=f#q=Marisa%20Galvany&hl=en&emb=0

P.S. On the Marisa Galvany page,you will hear some excerpts from the soprano Maria Galvany, whose rapid-fire staccati are legendary, if also rather strange.