Piano: Undoubtedly known as the best and common instrument in the world, incredibly fun to play with burning candles when its pitch black and a storm outside. A piano should not be confused with a keyboard, a piano-imitating instrument which has poorer quality sounds and skills that waste electricity; those are insults to the Piano. The piano consists of keys that hammer onto the internal string – somewhere inside it - to produce sound. The keys are usually black and white, unless it’s a fake.