There are 36 black keys on a standard 88-key piano. The black keys represent sharps and flats. A standard piano with 88 keys has 52 white keys. The white keys are the natural notes.

In the 18th century keyboard instruments were evolving ... the amount of force used to depress the keys. The addition of extra strings for each note brought new richness and depth to the sound.

Now Simply Piano has brought the experience from the iPhone and iPad to augmented reality on Apple Vision Pro. The best part?

Whether the evolution of curved pianos will follow a similar trajectory remains to be seen, but the audience at Manhattan’s ...