Useful for those who have little or lots of experience. Sheet music takes years (if not a lifetime) to master, so I tend to always include intuitive representations of everything. That way, if you can't read sheet music well, you can still use it, so it is scaffolded sheet music learning. Great for an impatient student who is in a hurry and wants to enjoy the best parts, but then it's also useful to hang on a wall and study for years.