唱歌

Why does 唱歌 look like this?

'唱' (chàng) consists of the 'mouth' radical (口) on the left and 'prosperous/bright' (昌) on the right, suggesting using one's mouth to make a bright, clear sound. '歌' (gē) combines 'older brother/to speak' (哥) with 'lack/yawn' (欠), which depicts a person opening their mouth wide to let out a rhythmic song. Together, they represent the act of singing!