History & anatomy of the piano
The fortepiano was invented by Bartolomeo Cristofori around the turn of the 18th century and has since evolved into what we know today as a grand piano. This expressive instrument offers a wide dynamic range, rich resonance, diverse tonality, and a responsive touch, enabling the pianist to accurately reproduce the precise expressive intentions of the composer in their performance.
Owing to critical differences in the action mechanism and overall size of instrument, a grand piano is a more capable and expressive instrument than an upright, which was developed in the 19th century as an affordable and compact instrument.