(Oops -- I was writing this about Que Faser, by the same group; thought i was still on that tune's page. Please disregard the following comment box by me.)
But Inner Organs is also a big favorite for totally different reasons; a real mood/trance/shamanic journey.
I love this sweet track! And this groundbreaking group; I've got all 3 of their CDs, and saw them live a number of times.
Need a quick pick-me-up? This will work without fail; no way you could not be smiling by halfway through. It's a tune by Nana Vasconcelos, the Brasilian/jazz percussionist; that's his voice and berimbau.