We have designed a lot of various kinds of custom mechanical keyboard keycap sets, there are forest, food, anime, cake, history, gaming, colour and so on, only seems to have not stood in the music lover's point of view to design a keycap set, in order to make up for this shortcoming, we start from the Piano Stave Score, to design this set of vocal pentatonic pattern as the material keycaps, as a way to express our respect and apology to the music lovers and music art workers, and hope that can fill up a little bit of white space in their artistic life and the pursuit of art.