This is a polyphonic singing demo of silent night song as the fundamental tune and then you can hear the ovetones coming through which is the second sound you can hear. Singing two notes at once. There is no tricks just recorded on my iPhone so sound may not be great. I have only been Practising for three months but hope to get as good as Anna-maria Hefele one day 🙂 enjoy click here if you want to learn how to create your very own overtone sound
http://youtu.be/Hmmzf0abG2E

If you want to listen to me singing ” my heart will go on – Titanic ” half singing and half overtone singing .. https://soundcloud.com/susana-calvo-1… on #SoundCloud
like my Facebook page here: http://www.facebook.com/Soundcrinicity