The piano is a musical instrument played by means of a keyboard. It is widely known as one of the most popular instruments in the world. Widely used in Classical music for solo performances, ensemble 合奏use, chamber室内音乐的 music, and accompaniment, the piano is also very popular as an aid to composing and rehearsal.练习 Although not portable and often expensive, the piano's versatility 多用途and ubiquity 普遍存在have made it one of the world's most familiar musical instruments.
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