Classical Music

Classical Collections

TIS Music is a good source for classical music.
There are also lots of less common things available from Classical Vocal Repertoire. Not everything is in their online catalog, so if you don't see it, call them.
CD Sheet Music, CD-ROMs containing a lot of music for you to print out. A great value. Check out the website for more information.
Great Art Songs of Three Centuries (High or Low); published by G. Schirmer

Note: "Songs through the Centuries" is available for both High and Low voice.

Opera Arias for Soprano, ed. Robert L. Larson

(also Mezzo, Tenor, Baritone and Bass, Coloratura Arias for Soprano) ed. Larsen