Possible Clues:

• Beethoven or Chopin work (... first 2 letters + the last 2)
• Keyboard solo with several movements
• Beethoven’s “Hammerklavier,” for one
• Hyundai driven by Vladimir Horowitz?
• One of 32 for Beethoven
• Hyundai that transports 88-key instruments?
• One of Beethoven's 32
• Beethoven's 'Appassionata,' e.g