Simplify the following text for a Grade 9 native English-speaking person.
Original: Noh , or Nogaku - derived from the Japanese word for `` skill '' or `` talent '' - is a major form of classical Japanese musical drama that has been performed since the 14th century .
Simplified: Noh or No ( Japanese : è 1\/2 NÅ ) is a major form of classical Japanese musical drama that has been performed since the 14th century .