This drawing can be considered a more abstract approach to representing soundwaves. I've used drawings of three-dimensional cubes of differing lengths to show the ups and downs of a responsive type of prayer in Judaism. This drawing was specifically based off of a Rabbi praying, with a congregation responding. The smaller cubes represent the Rabbi's singular voice, and the larger cubes that follow represent a higher frequency of voices that come together within the Jewish community, to respond to the Rabbi in prayer.