Useful websites:
1. (Free Sheet Music Library)
http://imslp.org
2. (Full Anaylsis of J.S. Bach's Well Tempered Clavier)
2. (Full Anaylsis of J.S. Bach's Well Tempered Clavier)
http://www-personal.umich.edu/~siglind/text.htm
3. (sheet music, discussions about the piano, a musical blog, and much more)
http://www.pianostreet.com
4. (Sheet music store and online resource for teachers, students, and composers who want to broaden their awareness of current piano pedagogy.)
https://pianopronto.com
Recommended reading:
1. Max Camp: Developing Piano Performance
2. Walter Geiseking/Karl Leimer: Piano Technique
3. William S. Newman: The Pianist’s Problems
4. Jean-Jacques Eigeldinger: Chopin Pianist and Teacher
5. CPE Bach: on Playing Keyboard Instruments
6. Josef Lhevinne: Basic Principles in Pianoforte Playing
Important YouTube channels and Tutorials:
1. (Dr. Josh Wright, Concert Pianist and Teacher)
https://www.youtube.com/user/joshwrightpiano
2. (Paul Barton, Pianist and Artist)
3. (Dr. Alex McDonald, Pianist and Teacher) https://www.youtube.com/channel/UCePfwq1WIVsad_lfY1AATqg
2. (Paul Barton, Pianist and Artist)
https://www.youtube.com/playlist?list=PLzSEchvesNHYKhP8qdnPaAD87AEH0XrAZ
3. (Dr. Alex McDonald, Pianist and Teacher) https://www.youtube.com/channel/UCePfwq1WIVsad_lfY1AATqg
4. (Graham Fitch, Pianist and Teacher)
He doesn't have a current website or personal YouTube Channel, but many of his resources are available through the channel "Pianist Magazine"
https://www.youtube.com/watch?v=eMzdigll8jY
https://web.archive.org/web/20161009161653/http://www.grahamfitch.com/
Articles:
1. (Horowitz on the incorporation of technique into musicality)
http://nettheim.com/horowitz/horowitz32.html
2. (Horowitz on voicing and balance)
http://nettheim.com/horowitz/horowitz28.html