Answer:
1- Everything must be edible
2. Must be visually pleasing
For example on number 1 the time signature is 4/4 , that means there has to be 4 beats in between each bar line. They have already put in a half note which is equal to 2 beats. You can either put another half note or two quarter notes.
Remember
Whole Note = 4 beats
Quarter Note = 1 beat
Half Note = 2 beats
Dotted Half Note = 3 beats
In music theory<span>, a </span>scale<span> is any set of musical </span>notes<span> ordered by </span>fundamental frequency<span> or </span>pitch<span>. A scale ordered by increasing pitch is an ascending scale, and a scale ordered by decreasing pitch is a descending scale. Some scales contain different pitches when ascending than when descending, for example, the </span>melodic minor scale<span>.</span>