I'm learning a piece now which features quarter tones, or the pitches that fall in between the normal 12 notes that we are accustomed to in Western music. I have never worked with quarter tones before. In works such as Ravel's Piece en forme de Habanera or Alyssa Morris's "Yellow" , from Four Personalities , we see pitch bends. These are usually done with the embouchure, and I have no problem moving most of the notes on the oboe even as much as a half-step up or down. But this technique always involves a certain amount of scooping in the sound - I hit the real note then schmear my way to the adjusted one, and in my experiments this week I found that I was unable to reliably guess my way to a clean attack on an altered pitch using only my embouchure and air as a guide. In other words, if I finger B natural, I can adjust that easily to a quarter step flat or sharp, but can't reliably hit that quarter step straight on without having to wiggle for it. And ...