Sonification of Data

I'm taking a class on data next semester, which is titled 'Sonic and Visual Representation of Data'. Data visualization is something I hear a lot these days and more familiar to, but not as much emphasis has been put in representing data in auditory way. Wikipedia defines sonification as "the use of non-speech audio to convey information or perceptualize data." The instructor for this class will be a geophysicist, and he has done some sonification of volcanic activity. I'm hoping to do some projects that connects physical data (like heart rate) to music, and hopefully apply to my smartwatch-music playlist app idea.