Philharmonia Baroque playing the second movement (molto vivace) of Beethoven's Ninth Symphony, accompanied by a scrolling bar-graph score.
FAQ

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Q: Where can I get this recording?
A: Here:
http://philharmonia.org/shop/#beethoven

Q: Who is conducting?
A: Nicholas McGegan.

Q: What do the colors in the bar-graph score mean?
A: The colors show which instruments are playing. Here's a chart:
http://www.musanim.com/img/b9m2_colors.jpg

Q: What does the piece look like as a whole?
A: See this:
http://www.musanim.com/pdf/BeethovenSymphony9_overview.pdf

Q: Why are the notes different sizes, and some are blurrier than others?
A: Each group of instruments (strings, woodwind, brass, percussion) is shown in a separate layer, and has a different size and degree of blur; this helps you see when instruments in more than one group are playing the same pitch at the same time.

Q: Please tell me more about the composer.
A: You can read about Beethoven here
http://en.wikipedia.org/wiki/Beethoven

Q: Why is the pitch one-half step flat?
A: The music is being performed at "Baroque pitch." To learn more about this, see ...
https://en.wikipedia.org/wiki/Pitch_(music)#Pitch_standards_and_Standard_pitch

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A: Please see this:
http://www.musanim.com/requests/