Piano Keybuild is a small font designed for creating piano keyboard layouts. It was inspired by my Yamaha CLP-840, a wonderful digital piano. The face consists entirely of keyboard keys that can be combined to form realistic keyboards. These keys come in four styles: basic outlined keys, filler keys (for adding a second color inside the outlines), keys with note names, and pre-made sets of keys. Keys of a given kind will kern with one another, but only in the order that they would naturally occur on a keyboard. (This makes it easier to spot incorrect key sequences.) It also includes digits 0 through 9 inspired by numerals used in traditional music notation.

The user guide (PDF under Gallery tab) demonstrates the locations of all the glyphs as well as how to use them together effectively.