Tod Machover of MIT's Media Lab invented the musical technology behind Guitar Hero, and at TED2008 he talks about what's coming next. Listen for some brand-new ways to interface with music -- to play it, compose it, enjoy it. Machover then introduces Dan Ellsey, a composer with cerebral palsy who uses the lab's tools to write and perform his own music. Ellsey conducts his "My Eagle Song," in a soaring performance that underscores music's power to give you chills.
21:41 minutes

Here is a collection of short videos that are thought provoking and inspiring and of high caliber that we have gleamed from the web. Enjoy!
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In Al Gore's brand-new slideshow (premiering exclusively on TED.com), he presents evidence that the pace of climate change may be even worse than scientists were recently predicting, and challenges us to act with a sense of "generational mission" -- the kind of feeling that brought forth the civil rights movement -- to set it right. Gore's stirring presentation is followed by a brief Q&A in which he is asked for his verdict on the current political candidates' climate policies and on what role he himself might play in future.
27:54 minutes
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Ben Dunlap
tells the story of Sandor Teszler, a Hungarian man he met at Wofford College. In telling Teszler's dramatic life story, which arcs from the Holocaust to the American Deep South of the 1950s, Dunlap shares some deep and, ultimately, moving lessons about justice -- and the power of lifelong learning. Sit back and listen.
19:08 Minutes
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What is happiness, and how can we all get some? Buddhist monk, photographer and author Matthieu Ricard has devoted his life to these questions, and his answer is influenced by his faith as well as by his scientific turn of mind: We can train our minds in habits of happiness. Interwoven with his talk are stunning photographs of the Himalayas and of his spiritual community.
21:06 Minutes