How I’d redesign piano sheet music
What happens if you rotate that first image 90° counter-clockwise? <a href="http://i.imgur.com/i2V57On.png" rel="nofollow">http://i.imgur.com/i2V57On.png</a>
You get a traditional sheet music with simpler graphics.<p>What about the new features?<p><pre><code>  - Easily printable: traditional scores already are
  - Screen and scroll-friendly: you can stack traditional score pages vertically
  - Chord names: already exist on traditional scores
  - Lyrics: same thing
  - Foot pedal arrows: same thing
</code></pre>
The only novelty here is to match a piano's physical <i>horizontal</i> pitch range, which forces the time axis to be vertical instead.<p>I guess sheet music is like code: sometimes you just need to learn it the <i>hard</i> way.