You can solve this problem using polar coordinates.

He is good at playing Beethoven's sonatas.

He decided to run a marathon to test his limits.

He played Bach's suite on the piano.

He is good at playing Bach's cantatas.

This way of thinking limits our perspective.

He is receiving treatment for tuberculous dactylitis.

My favorite VOCALOID song is 'Senbonzakura'.

She loves to dance the waltz.

He believes in the distorted explanation about that historical event.