Bill Staines used to do a yodeling workshop. If he's coming to your area sometime soon contact the venue and see if they can request that Bill do his workshop as well. He writes out the yodelling syllables phonetically and leads the group through starting slow, then picking up the pace to near full steam.

I have always said that yodelling is God's gift to people with bad voices... (No flames please - it's a joke!) But seriously, I have talked to classically trained vocalists who shun yodelling like the PLAGUE! You are deliberately forcing a "crack" in your voice. The way to find it is to start with a low note and modulate it slowly upwards to the point that you can't go any higher without going into falsetto. Where that occurs, "crack" up into the falsetto, and there is your yodel! Practice going back and forth over that point so that you can do it at will.

Next step is to find those phonetic spellings... Here's an attempt at one, but it won't be much good without a melody...

  G      C          G  Hi dee yay, yodel ay tee hee oh  C  Yodel ay Tee hee  G  Yodel ay Tee hee  G      C          G  Hi dee yay, yodel ay tee hee oh  D                              G  Yodel ay tee hee, yodel ay tee hee  

Good luck!

- Al