sentiment

"I like that music. It sound happy."
It's supposed to sound like happy dancing.
"It sounds like laughing."
People have made music to sound like lots of things. Think of the alone music. There are angry dances, happy dances, music that sounds like frowning, or crying, or someone being mischievous.
"When I grow up I'll be a magician and I'll make music like the sound of your voice."