Note (Onpu) Cards: 88 cards + Scale Cards: 12 cards ★ The order is different from new because the cards have been arranged about twice. Features of the Note Cards: The front side has a treble clef and a bass clef with a single note, and you quickly press the corresponding key on the keyboard when you see the note. The back side shows the name of the note, a diagram of the keyboard, and a black dot (the location of the note), so you can see where the note on the front is located on the keyboard. For all notes, only middle C (one-line C) is always displayed in gray, so you can understand relatively where the note you are playing is on the entire keyboard. You won't make the mistake of playing an octave too high or too low. The back of the card has a diagram of the entire keyboard at the top and a close-up of the hand at the bottom. Supports note names (Ha-Ni-Ho), solfège (Do-Re-Mi), and German notation (C-D-E). The size is about the same as a playing card, so it fits in one hand. Includes a total of 100 cards: 88 note cards and 12 key signature cards that show the scales of the keys. Thank you for viewing.