Ouch! How can anyone hate the accordeon? Anyway, I've gotten used to strong opinions on harmonicas, accordeons, bagpipes, bodrhans and yodeling. It usually comes from people who are frustrated at playing with or along with those instruments. I often yodel along with Wilf Carter or Jimmy Rodgers songs. They really are not the same if you don't do the yodel part. And I agree that our Austrian, Swiss and German friends have perfected the pinnacle of yodelling. Something about those mountain echoes and clean mountain air in the lungs. My tip for yodelling is to work on your falsetto voice. Once you are comfortable hitting those falsetto notes, you can practice jumping from your normal singing voice up into the falsetto range. Just like a two or three octave jump or stretch on a piano keyboard, when you jump you need to know exactly where you are going to land. You can pretend yodel by singing all the parts in falsetto, but listening to good yodels you see the octave jumping is essential. Reverb is important to yodelling, since it was invented on mountainsides and hillsides. So use it on your amp, or practice in Bathrooms and empty closed spaces. Remember , the voice is an instrument, and yodelling is a technique with that instrument, just like overdrive on electric guitars, or bending reeds on harmonicas and accordeons. (Had to get a final point of defense for those beautiful reed instruments!) :)