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Hey, so me and some of my classmates are doing a school project for computer science/technology class, and our project is based around creating a laser harp or a similar mechanism. I came across your tutorial, but we have a very limited budget and minimal experience, so we were wondering whether there was an easier way to make a more watered down and more simplistic version of a laser harp type project. We have some budget, speakers, lego mindstorms, and makeymakey circuit boards. Any ideas and/or advice would be much appreciated! Thanks!