Hey, thanks for the feedback! I'm kind of beating myself up for not doing that because I had my friend test it and they suggested that as well. If I every come back to this game, I will likely wire the Music Crystals to the keyboard on the bottom so you can easily see which notes are flashing and the player could also choose to memorize the number combinations. I'm glad that some of you had the problem as well though and are pointing it out, because it shows me where I should have focused a bit more for next time!