YOU SAID:

who (what soloist, what pianist?) can play Beethoven well?

INTO JAPANESE

誰（どのソリスト、どのピアニスト？）がベートーベンを上手に演奏できますか？

BACK INTO ENGLISH

Who (which soloist, which pianist?) Can play Beethoven well?

INTO JAPANESE

誰（どのソリスト、どのピアニスト？）ベートーベンを上手に演奏できますか？

BACK INTO ENGLISH

Who (which soloist, which pianist?) Can you play Beethoven well?

INTO JAPANESE

誰（どのソリスト、どのピアニスト？）ベートーベンを上手に演奏できますか？

BACK INTO ENGLISH

Who (which soloist, which pianist?) Can you play Beethoven well?