I n the left-hand of Fig. Each staff can contain up to 4 layers.
Voices are more specialized in their function than layers.
They are perhaps best suited to handle special contexts that occur in piano notation. The notation in Fig. 1 could be created with either Layers or Voices. The decision to use Layers or Voices will often be determined by your personal preference. Yet, as you will see below, Layers have many advantages over voices.