Heartbeat of the Sun
Music By: Mickey Hart, Ben Yonas, Crystal Monee Hall, Sikiru Adepoju, Zakir Hussain
Give your ears a taste:
Sounds of the Universe
Heartbeat of the Sun’s climbing percussive lines are based graphs of sunquakes. The sun is constantly vibrating because of the thermonuclear reactions taking place within it, which boil up to the surface. The flaming gas ball is akin to a giant round gong, with the boiling within striking its surface like many grains of sand inside a shaking globe. These tiny strikes from within cause the surface to vibrate, with pressure nodes appearing that describe its resonances. About ten million different vibrational patterns have been observed by helioseismologists (the people who study sunquakes). Some nodes are horizontal along the surface, like latitude lines on a globe. Others are vertical, like longitudinal lines. And others are interior, appearing between the center and the surface.
The l-nu diagram abstracts and consolidates these many nodes on a chart that is like a sonogram. The numbers along the bottom are the number of horizontal latitude nodes (0-350). Each of these nodes can support multiple frequencies. The number of frequencies supported for each node can be seen along the left edge. The intensity of each frequency can be seen in the color plotted. The graph shows a series of arcing lines. These lines were translated into a percussive pitch, which then ascended in a manner akin to the shape of these arcs. We listen “upwards,” starting with the lowest line and moving up.
National Optical Astronomy Observatory http://www.noao.edu/education/ighelio/solar_music.html