Because you have to do frame by frame movements and depending on how smooth you want your animation to be would depend on how many frames are required.
Answer:
Art, in my opinion, is just as vital as other subjects. This may seem obvious, but art allow kids to express themselves more freely than other subjects such as arithmetic. It aids in the development of motor skills, visual learning, decision-making, and other abilities.
Answer: If you are skipping one note just count one line or space after the specific note. If you are skipping two notes then go up or down by two lines/spaces.
Explanation: