Octavalia · Note reading
Look at the note and name it. You start with three. Once you can read them at a glance, the next one comes in.
Which note is this?
Answer with the buttons, with the 1 to 7 keys on your computer, or by playing the keyboard.
This is where you'll see if you got it right and, if not, why.
A note is secure when you get it right the last four times, each in under 3 seconds. The ones you find hard come up more often.