In grand pianos, the frame and strings are horizontal, with the strings extending away from the keyboard. The action lies beneath the strings, and uses gravity as its means of return to a state of rest. There are many sizes of grand piano.
An upright piano is a stringed musical instrument in which the soundboard and plane of the strings run vertically, perpendicular to the keyboard, thus taking up less floor space than the normal grand piano. Upright pianos are made in various heights. Popular in homes and studios, the upright piano is an ideal choice to save room and fit your budget.