1. Watch video "18 EarSketch Function Exercise". Presentation slides located at: http://nebomusic.net/earsketchlessons/EarSketch_Python_Presentation_2020.pdf starting on slide 33.
2. Complete the Functions Exercise using the directions located at: http://nebomusic.net/earsketchlessons/Directions_EarSketch2_Function_Exercise.pdf
A. Write three functions:
sectionA(start, end)
sectionB(start, end)
sectionC(start, end)