[x] go through variables and make sure all the names make sense
[ ] simplify stuff
[ ] compartmentalize code — make separate functions maybe?
[ ] try the enum code structure to keep track of the different modes
[ ] fix delay pops - https://forum.pjrc.com/index.php?threads%2Faudio-effect-delay-pops-clicks-when-changing-tap-times.62739%2F
[ ] use return function - its like void but it gives you back data in /~return~\
