Music software programs often have what is called a piano roll editor. They can actually be more useful than editing traditional score.
I’ve started recently going back into the editor to review a performance. I found a diving turtle and thought I’d share:
![Silliness is excellent medicine. Diving Turtle in the notes](https://i0.wp.com/localhost/wp-content/uploads/2009/09/Diving-Turtle.png?resize=558%2C275)
The Diving Turtle hidden in the notes