link: http://www.youtube.com/watch?feature=player_embedded&v=-MiRrkkTUzo

link: http://www.youtube.com/watch?feature=player_embedded&v=PP8E2PsAzI8

link: http://www.youtube.com/watch?feature=player_embedded&v=K5dn-RIxEys
Descargar Mp3 en la descripción de cada vídeo.