很多人以為彈琴是 Play piano,這錯誤非常普遍。可能大家對英文冠詞(Articles)不熟悉。有時 the 與單數可數名詞連用,可以表示泛指,而科學儀器、發明品及樂器的名稱都常常這樣用。例如:Life would be quieter without the telephone 是「要是沒有電話,生活可就會清靜一些了」,I am learning to play the piano 是「我正在學彈鋼琴」等於 I am learning the piano,Who's that on the piano? 是「那個彈鋼琴的是誰呀?」,The violin is more difficult than the piano 是「拉小提琴比彈琴更為困難」。所以拉小提琴是 Play the violin,「彈吉他」是 Play the guitar,「吹號角」是 Play the horn。注意:「踢足球」是 Play football ,「打籃球」是 Play basketball,「打排球」是 Play volleyball,打球都不加 the。