An upright piano is a popular musical instrument that stands vertically with its strings and hammers facing upwards. It is also known as a vertical piano, standing piano, or tower piano. The term 'tall piano' can also be used to describe an upright piano with a taller height. Additionally, the term 'console piano' can be used to refer to a smaller upright piano with a compact size and a toned-down version of sound. The term 'spinet piano' is a type of miniature upright piano that is shorter in height and has a condensed keyboard. Overall, the vertical piano family consists of many variations, each with its unique sound and style.