Can't figure out what it is. It doesn't do it when the wheels are straight, and it doesn't do it when the car isn't moving. It has a rubbery, squeaky quality at low speeds but becomes more of a whistling chirping sound at higher speeds. It worsens on acceleration. The belts appear to be OK and I don't get any abnormal sounds from the power steering at rest. Fluid is fine.
It really seems like its a right front wheel issue, but I've checked the rotor and pads and don't see anything wrong, though I haven't pulled the caliper. It isn't a typical wheel bearing sound, and the right wheel feels the same as the left, which is quiet. The tires are fine and show no signs of rubbing or uneven wear.
I'm baffled. I will try and get a sound file uploaded.