I want to know the answer to the following question:
What is a celestes?
All the background I'm provided with is that "New woodwind instruments were added, such as the contrabassoon, bass clarinet and piccolo and new percussion instruments were added, including xylophones, drums, celestes (a bell-like keyboard instrument), large orchestral harps, bells, and triangles  and even wind machines for sound effects.". Is that enough to answer the question?