Grand piano
DEFINITION
A large traditionally ( harp shaped) piano where the strings run horiziontally. This is the preferred concert instrument and is available in several sizes from the baby grand (around 5 feet long) to the concert grand (around 9 feet long). The concert grand is also known as a "9-foot grand" although it may not actually be 9 feet in length.Concert Grand Piano& Sonsa piano in horizontal, wing-shaped case, as opposed to an upright piano