Watch Beethoven: The Complete Piano Sonatas for Free: How to Stream the Movie Online at 123Movies. . In this recording, seven-time GRAMMY® Award-winning pianist and conductor Daniel Barenboim tackles the so-called 'New Testament' of music, Ludwig van Beethoven's thirty-two piano sonatas, composed over twenty-five years and embodying the shift of musical taste from the Classic to the Romantic, their performance requires a musician of extraordinary versatility. Daniel Barenboim is one such pianist his recordings run the gamut from Bach and Mozart to Bruckner and Bartók.