The Saturday Post: Playing For Change edition

Just a few posts ago, I let the world know how much I hate forwards. Then I received a forward about an organization called Playing For Change, and it changed my attitude ... at least about that one specific forward. Instead of forwarding its content, though, I'm posting it here.

Playing for Change is, according to PlayingForChange.com, "a multimedia movement created to inspire, connect, and bring peace to the world through music. The idea for this project arose from a common belief that music has the power to break down boundaries and overcome distances between people. No matter whether people come from different geographic, political, economic, spiritual or ideological backgrounds, music has the universal power to transcend and unite us as one human race."

The organization's movement kicked into high gear several years ago, thanks to the video below. Since then, numerous similar videos have been produced, and musicians associated with the project often travel the world for concerts.

If you enjoyed that, there's also a beautiful one of John Lennon's Imagine (featuring a clip of Lennon and Yoko Ono) you won't want to miss. I debated which to feature here, but figured I'd go with the one that started it all.

Today's question:

What causes, organizations, movements, charities matter most to you?