This is "Tlön," for three conductors and no players.  This was based on the experience of actually watching two people having a virulent argument in sign language, which produced no decibels to speak of, but affectively, psychologically, was a very loud experience.
演奏者なしの3人の指揮者 「トレン」です  これは手話でとげとげしい言い争いをする2 人を 実際に目撃した経験から思いつきました 会話のデシベルは皆無でしたが 情緒的 心理的に実に騒々しい経験でした