This sankyoku gasso can be called a very scrupulously made ensemble, and along with other music, such as the wind and string music of Gagaku (ancient Japanese court music), or Gamelan (Indonesian music), it's typical heterophony, being different from the polyphony of Western music.
これはきわめて精緻に作られた合奏音楽と言え、雅楽の管絃やガムランなどと共に、西洋音楽のポリフォニー（多音性）とは異なるヘテロフォニー（異音性）の端的な例として挙げることができる。