When I hear that song, old memories come to mind.

His timbre is very beautiful.

I heard the cry of a bird in the park.

The dog is barking.

When it comes to the sounds of summer, the chirping of cicadas comes to mind.

Leaves are floating on the pond.

Summer is my favorite season.

I thought he would be late, but he came on time.

He seems to be very tired.

The reason he is thought of that way is because he always works seriously.