Помогите описать один музыкальный инструмент на онглийском языке

Guitar- stringed instrument. The guitar is an a fantastic way to making a music It's making from a wood and metal. The music making by the concurrence of fingers  and strings. That's not easily to play on it. Inside the guitar is an empti. For the save it's covered by the polish. The guitar is a very old music instrument.