He scratched his head when faced with a difficult problem.

He is bright, so he was able to solve the problem immediately.

He started singing The Internationale.

I heard the beautiful song of a common blackbird in the park.

The song of Naniwa-zu is one of the ancient Japanese poems.

My favorite song is Aegukka.

A voiced consonant is a consonant that involves the vibration of the vocal cords.

He is famous as a countertenor singer.

His vulgar and thick voice echoed throughout the room.

We should always remember the power of Kannon in difficult times.