Music “Do Re Mi which one?”
Contents to memorize musical notes
Finally, a “Music” category has been added! (September 2021)
And the first content is the problem of reading music notes.
When you start learning to play the piano, you will probably first learn how to read music. For this purpose, you may use note cards and so on.
It might be a good idea to use the note cards and practice them by yourself outside of lessons, but it is difficult for small children to do so alone.
Therefore, we decided to create contents for memorizing musical notes.
Translated with DeepL.com (free version)
コンテンツ紹介

This content allows you to select the musical notation (notes) that represents the “sound” indicated in the question text.
If the correct note is selected, [✕] will be displayed.
If you press the wrong note, a [O] will be displayed.
This is an exercise to help you learn to convert notes to their names as you see them in the score, rather than from D to X.
Not only the G clef, but also the F clef Ver. is available!
ト音記号

ヘ音記号

(1) The notes are spaced apart so that they are easy to read.
(2) Can be tackled in a fast-paced, game-like manner.
(3) Can be tackled sensitively, for example by selecting the notes themselves rather than pressing buttons.
Development Documents
Drafts of screens (UI, etc.) created in the early stages of content development.

In the initial screen we thought of, we had placed buttons for selection under the notes, but we thought it would be easier to understand without them. However, we decided to eliminate this button.
We also changed the notes to musical notes instead of non-existent black circles.