Resources

List of online resources

I've used all of these at one time or another and heartily recommend them. If a legal source exists online, I have provided it here.

Audio

Andras Schiff's lectures on Beethoven's Piano Sonatas
http://music.guardian.co.uk/classical/page/0,,1943867,00.html

Marcel Tabuteau's Lessons
For sale: http://www.bostonrecords.com/servlet/the-88/Marcel-Tabuteau/Detail

Maria Callas' Master Class at Juilliard
https://sites.google.com/site/operalala/CallasJuilliard

Video

Eunice Norton: The Teaching of Artur Schnabel
http://www.youtube.com/playlist?list=PL68CBB4B0B6BD7FDB&feature=plcp

David Finckel Cello Talks
http://vimeo.com/channels/davidfinckelcellotalks

Barenboim on Beethoven: Masterclass

Leonard Bernstein's Young People's Concerts

Leonard Bernstein's Omnibus Lectures

Carlos Kleiber: Traces to Nowhere

Carlos Kleiber - Rehearsal & Performance 

Heifetz Masterclass 
http://dasclassicalblog.blogspot.com/2012/09/heifetz-masterclass.html

Books

Sound In Motion - David McGill

The Art of Musicianship - Philip Farkas

The Grammar of Conducting - Max Rudolf
The first edition had an endorsement by George Szell -- why it has been removed in later editions is beyond me. 

Counterpoint - Walter Pison
Harmony - Piston

Websites

Operalala
https://sites.google.com/site/operalala/Home

IMSLP/Petrucci Music Library: Free Public Domain Sheet Music
http://imslp.org/wiki/