Orchestral bells, also known as tubular bells or chimes, are a percussion instrument commonly found in orchestras and concert bands. There are several synonyms for orchestral bells, including tower bells, carillon, celesta, glockenspiel, and handbells. Tower bells are large versions of orchestral bells that are often found in churches or bell towers. Carillons are sets of tower bells that are played using a keyboard. Celestas are similar to orchestral bells but use metal plates instead of tubes. Glockenspiels are smaller versions of orchestral bells often used in marching bands. Handbells, as the name suggests, are bells held and played by hand, commonly used in church choirs.