This diode only allows current to flow in one direction.

His opinions are always extreme.

His opinion is always extreme.

The finale of this opera was very moving.

He played three songs on the piano.

The atmosphere of this song is very calming, isn't it?

He showed me some acrobatics.

A Bézier curve is a mathematical curve that is often used in computer graphics.

My grandmother loves old kayōkyoku songs.

I think this musical composition is his greatest masterpiece.