https://www.virtualsheetmusic.com/experts/robert/bachs-fugues-and-concertos-exp/ - An exploration of Johann Sebastian Bach's The Well-Tempered Clavier, detailing the history of well tempered tuning, four part chorale voice leading, and contrapuntal forms like inventions and fugues. Robert Estrin breaks down performance practices, including slow practice and pedal usage in Bach, and analyzes structural connections in works by Beethoven, Chopin, and Schumann.