http://www.gong.noao.edu/index.html
Global Oscillation Network Group: You'll find links to GONG's worldwide
sites, lots of current science, and educational materials. Frank Hill and
LFSUN science advisor John Leibacher work on this project.
http://solar-center.stanford.edu/singing/singing.html
The basics of transforming soundwaves on the Sun into information about its
interior (a.k.a. "helioseismology", see Activity 2.3 in the LIVE FROM THE
SUN Teacher's Guide), including links to actual "Sun Sounds."