Aleatory music refers to a kind of music form in which musicians introduce accidental factors into the creative process or performance process in their creation. The specific methods include: using random techniques when composing works, allowing players to perform impromptu performance without any hint, and even playing tracks by modifying musical instruments or adding external sounds.
According to the above definition, which of the following options is not aleatory Music:
Use dice and coins to determine the pitch, strength and orchestration of the work, and create a score