Instantly create additional Lively Tracks, attract new listeners and break the cycle of creating the same track repeatedly (with only a Drag and Drop).
They can also be utilized in the same way as instruments (as you would use an 808) or drag it into loops. This gives you complete control over your ideas and doesn't limit you to loops or midi notes.
Layers are focused on diversity in each loop, to give you something that is suitable for any type of track.