consider having a kaivo energymean control growshrink amount instead of the sine oscillation

eliminate unnecessary data, consider doing the scale mapping offline

when the song ends, it restarts by calling the startPlay() function. after this happens, no p5.sound functions work - pause(), stop(), etc don't do anyting

when the save image key command is hit, set a flag called saveImgFlag to true. when saveImgFlag is true, the ellipse is not written and the saveImg() function is called instead. when saveImgFlag is false, the ellipse is written and no image is made

this promises: thing seems useful for purposes of:

preloading songdata json and audio, then triggering the startPlay() function when both things have happened

restarting the song when it ends

upper left hand corner mousepressed is not good for image download bc the graphic is controlled by mouse pos